THRIFT-4508: end trusty CI builds; handle nodejs 4.x LTS EOL; update docs
diff --git a/build/docker/README.md b/build/docker/README.md
index 35943e1..d7a0126 100644
--- a/build/docker/README.md
+++ b/build/docker/README.md
@@ -31,9 +31,8 @@
 
 ### Ubuntu ###
 
-* trusty (legacy)
 * xenial (stable)
-* artful (latest)
+* artful (current)
 
 ## Unsupported Containers ##
 
@@ -115,55 +114,55 @@
 
 Last updated: October 1, 2017
 
-| Tool      | ubuntu-trusty | ubuntu-xenial | ubuntu-artful | Notes |
-| :-------- | :------------ | :------------ | :------------ | :---- |
-| ant       | 1.9.3         | 1.9.6         | 1.9.9         |       |
-| autoconf  | 2.69          | 2.69          | 2.69          |       |
-| automake  | 1.14.1        | 1.15          | 1.15          |       |
-| bison     | 3.0.2         | 3.0.4         | 3.0.4         |       |
-| boost     | 1.54.0        | 1.58.0        | 1.63.0        | artful: stock boost 1.62.0 has problems running unit tests |
-| cmake     | 3.2.2         | 3.5.1         | 3.9.1         |       |
-| cppcheck  | 1.61          | 1.72          | 1.80          |       |
-| flex      | 2.5.35        | 2.6.0         | 2.6.1         |       |
-| glibc     | 2.19          | 2.23          | 2.26          |       |
-| libevent  | 2.0.21        | 2.0.21        | 2.1           |       |
-| libstdc++ | 4.8.4         | 5.4.0         | 7.2.0         |       |
-| make      | 3.81          | 4.1           | 4.1           |       |
-| openssl   | 1.0.1f        | 1.0.2g        | 1.0.2g        |       |
-| qt5       | 5.2.1         | 5.5.1         | 5.9.1         |       |
+| Tool      | ubuntu-xenial | ubuntu-artful | Notes |
+| :-------- | :------------ | :------------ | :---- |
+| ant       | 1.9.6         | 1.9.9         |       |
+| autoconf  | 2.69          | 2.69          |       |
+| automake  | 1.15          | 1.15          |       |
+| bison     | 3.0.4         | 3.0.4         |       |
+| boost     | 1.58.0        | 1.63.0        | artful: stock boost 1.62.0 has problems running unit tests |
+| cmake     | 3.5.1         | 3.9.1         |       |
+| cppcheck  | 1.72          | 1.80          |       |
+| flex      | 2.6.0         | 2.6.1         |       |
+| glibc     | 2.23          | 2.26          |       |
+| libevent  | 2.0.21        | 2.1           |       |
+| libstdc++ | 5.4.0         | 7.2.0         |       |
+| make      | 4.1           | 4.1           |       |
+| openssl   | 1.0.2g        | 1.0.2g        |       |
+| qt5       | 5.5.1         | 5.9.1         |       |
 
 ## Compiler/Language Versions per Dockerfile ##
 
-| Language  | ubuntu-trusty | ubuntu-xenial | ubuntu-artful | Notes |
-| :-------- | :------------ | :------------ | :------------ | :---- |
-| as of     | Oct 01, 2017  | Jan 29, 2018  | Mar 02, 2018  |       |
-| as3       |               |               |               | Not in CI |
-| C++ gcc   | 4.8.4         | 5.4.0         | 7.2.0         |       |
-| C++ clang | 3.4           | 3.8           | 4.0           |       |
-| C# (mono) | 3.2.8.0       | 4.2.1.0       | 4.6.2.7       |       |
-| c_glib    | 2.40.2        | 2.48.2        | 2.54.0        |       |
-| CL (sbcl) |               |               | 1.4.4         |       |
-| cocoa     |               |               |               | Not in CI |
-| d         | 2.070.2       | 2.073.2       | 2.077.1       |       |
-| dart      | 1.20.1        | 1.22.1        | 1.24.3        |       |
-| delphi    |               |               |               | Not in CI |
-| dotnet    |               | 2.1.4         | 2.1.4         | v2.1.4 SDK uses v2.0.5 Runtime |
-| erlang    | R16B03        | 18.3          | 20.0.4        |       |
-| go        | 1.2.1         | 1.6.2         | 1.8.3         |       |
-| haskell   | 7.6.3         | 7.10.3        | 8.0.2         |       |
-| haxe      |               | 3.2.1         | 3.4.4         | THRIFT-4352: avoid 3.4.2 |
-| java      | 1.7.0_151     | 1.8.0_151     | 1.8.0_151     |       |
-| js        |               |               |               | Unsure how to look for version info? |
-| lua       | 5.1.5         | 5.2.4         | 5.2.4         | Lua 5.3: see THRIFT-4386 |
-| nodejs    |               | 4.2.6         | 8.9.4         | trusty has node.js 0.10.0 which is too old |
-| ocaml     |               | 4.02.3        | 4.04.0        |       |
-| perl      | 5.18.2        | 5.22.1        | 5.26.0        |       |
-| php       | 5.5.9         | 7.0.22        | 7.1.11        |       |
-| python    | 2.7.6         | 2.7.12        | 2.7.14        |       |
-| python3   | 3.4.3         | 3.5.2         | 3.6.3         |       |
-| ruby      | 1.9.3p484     | 2.3.1p112     | 2.3.3p222     |       |
-| rust      | 1.15.1        | 1.17.0        | 1.21.0        |       |
-| smalltalk |               |               |               | Not in CI |
-| swift     |               |               |               | Not in CI |
+| Language  | ubuntu-xenial | ubuntu-artful | Notes |
+| :-------- | :------------ | :------------ | :---- |
+| as of     | Mar 06, 2018  | Mar 06, 2018  |       |
+| as3       |               |               | Not in CI |
+| C++ gcc   | 5.4.0         | 7.2.0         |       |
+| C++ clang | 3.8           | 4.0           |       |
+| C# (mono) | 4.2.1.0       | 4.6.2.7       |       |
+| c_glib    | 2.48.2        | 2.54.0        |       |
+| CL (sbcl) |               | 1.4.4         |       |
+| cocoa     |               |               | Not in CI |
+| d         | 2.073.2       | 2.077.1       |       |
+| dart      | 1.22.1        | 1.24.3        |       |
+| delphi    |               |               | Not in CI |
+| dotnet    | 2.1.4         | 2.1.4         | v2.1.4 SDK uses v2.0.5 Runtime |
+| erlang    | 18.3          | 20.0.4        |       |
+| go        | 1.6.2         | 1.8.3         |       |
+| haskell   | 7.10.3        | 8.0.2         |       |
+| haxe      | 3.2.1         | 3.4.4         | THRIFT-4352: avoid 3.4.2 |
+| java      | 1.8.0_151     | 1.8.0_151     |       |
+| js        |               |               | Unsure how to look for version info? |
+| lua       | 5.2.4         | 5.2.4         | Lua 5.3: see THRIFT-4386 |
+| nodejs    | 6.13.0        | 8.9.4         |       |
+| ocaml     | 4.02.3        | 4.04.0        |       |
+| perl      | 5.22.1        | 5.26.0        |       |
+| php       | 7.0.22        | 7.1.11        |       |
+| python    | 2.7.12        | 2.7.14        |       |
+| python3   | 3.5.2         | 3.6.3         |       |
+| ruby      | 2.3.1p112     | 2.3.3p222     |       |
+| rust      | 1.17.0        | 1.21.0        |       |
+| smalltalk |               |               | Not in CI |
+| swift     |               |               | Not in CI |
 
 
diff --git a/build/docker/ubuntu-artful/Dockerfile b/build/docker/ubuntu-artful/Dockerfile
index 0b5b8ed..416d75e 100644
--- a/build/docker/ubuntu-artful/Dockerfile
+++ b/build/docker/ubuntu-artful/Dockerfile
@@ -19,6 +19,7 @@
 # - dotnet: does not come with Ubuntu
 # - haxe: version 3.4.2 that comes with Ubuntu cores in our CI build
 # - nodejs: want v8, Ubuntu comes with v6
+#
 
 FROM buildpack-deps:artful-scm
 MAINTAINER Apache Thrift <dev@thrift.apache.org>
diff --git a/build/docker/ubuntu-xenial/Dockerfile b/build/docker/ubuntu-xenial/Dockerfile
index b37434b..b69d7ea 100644
--- a/build/docker/ubuntu-xenial/Dockerfile
+++ b/build/docker/ubuntu-xenial/Dockerfile
@@ -15,12 +15,9 @@
 # Using all stock Ubuntu Xenial packaging except for:
 # - d: does not come with Ubuntu so we're installing 2.073.2 for coverage
 # - dart: does not come with Ubuntu so we're installing 1.22.1 for coverage
+# - nodejs: Ubuntu comes with 4.2.6 which exits LTS April 2018, so we're installing 6.x
 #
 
-#
-# Known missing or disabled libraries:
-# - d: deimos for libevent and openssl omitted - not compatible / build errors
-
 FROM buildpack-deps:xenial-scm
 MAINTAINER Apache Thrift <dev@thrift.apache.org>
 ENV DEBIAN_FRONTEND noninteractive
@@ -58,6 +55,10 @@
     echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-xenial-prod xenial main" > \
       /etc/apt/sources.list.d/dotnetdev.list
 
+# node.js
+RUN curl -sL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
+    echo "deb https://deb.nodesource.com/node_6.x xenial main" | tee /etc/apt/sources.list.d/nodesource.list
+    
 ### install general dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
 `# General dependencies` \
@@ -173,9 +174,7 @@
 
 RUN apt-get install -y --no-install-recommends \
 `# Node.js dependencies` \
-      nodejs \
-      npm && \
-    ln -s /usr/bin/nodejs /usr/bin/node
+      nodejs
 
 RUN apt-get install -y --no-install-recommends \
 `# OCaml dependencies` \