Add Salt 2018.3 tests and fix readme

Change-Id: I6b5be381afc4d0f4f6c95f302f3eec1068648c57
diff --git a/.kitchen.yml b/.kitchen.yml
index 7af31ff..050f800 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -36,7 +36,7 @@
 platforms:
   - name: <%=ENV['PLATFORM'] ||  'saltstack-ubuntu-xenial-salt-stable' %>
     driver_config:
-      image: <%=ENV['PLATFORM'] || 'epcim/salt-formulas:saltstack-ubuntu-xenial-salt-stable'%>
+      image: <%=ENV['PLATFORM'] || 'epcim/salt:saltstack-ubuntu-xenial-salt-stable'%>
       platform: ubuntu
 
 suites:
diff --git a/.travis.yml b/.travis.yml
index 20b5d2c..3456794 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,24 +17,32 @@
   - bundle install
 
 env:
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=server-rdiff
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-rsync
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-rsync_backup_times
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-s3
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-s3_disabled_auto
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-webdav
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=server-rdiff
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-rsync
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-rsync_backup_times
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-s3
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-s3_disabled_auto
-    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-webdav
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7 SUITE=server-rdiff
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-rsync
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-rsync_backup_times
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-s3
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-s3_disabled_auto
-#    - PLATFORM=epcim/salt-formulas:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-webdav
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2016.3 SUITE=server-rdiff
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-rsync
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-s3
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2016.3 SUITE=client-webdav
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=server-rdiff
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-rsync
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-rsync-backup-times
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-s3
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-s3-disabled-auto
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2017.7 SUITE=client-webdav
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=server-rdiff
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=client-rsync
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=client-rsync-backup-times
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=client-s3
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=client-s3-disabled-auto
+    - PLATFORM=epcim/salt:saltstack-ubuntu-xenial-salt-2018.3 SUITE=client-webdav
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=server-rdiff
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-rsync
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-s3
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2017.7 SUITE=client-webdav
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=server-rdiff
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=client-rsync
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=client-rsync-backup-times
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=client-s3
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=client-s3-disabled-auto
+#    - PLATFORM=epcim/salt:saltstack-ubuntu-bionic-salt-2018.3 SUITE=client-webdav
 
 before_script:
   - set -o pipefail
diff --git a/README.rst b/README.rst
index a05787b..92e30e9 100644
--- a/README.rst
+++ b/README.rst
@@ -75,10 +75,6 @@
 
 Backup client with exact backup times
 
-
-.. note:: This settings will configure global backupninja backup to be
-   triggered at exactly set times.
-
 .. code-block:: yaml
 
     backupninja:
@@ -90,8 +86,6 @@
           hour: 2
           minute: 32
 
-.. note:: This will trigger backup every monday at 2:32 AM.
-
 .. code-block:: yaml
 
     backupninja:
@@ -103,33 +97,19 @@
           hour: 14
           minute: 12
 
-.. note:: This will trigger backup every 24th day of every month at 14:12 (2:12 PM).
-
-.. note:: Available parameters:
-   ``day_of_week`` (0, 3, 6 ...). If not set, defaults to '*'.
-   ``day_of_month`` (20, 25, 12, ...). If not set, defaults to '*'.
-     Only ``day_of_week`` or ``day_of_month`` can be defined at the same time.
-   ``hour`` (1, 10, 15, ...). If not defined, defaults to `1`. Uses 24 hour format.
-   ``minute`` (5, 10, 59, ...). If not defined, defaults to `00`.
-
-..note:: Parameter ``auto_backup_disabled`` is optional. It disables automatic
-  backup when set to true. It's set to ``false``by default when not defined.
-
-Backup client with defined number of backups to keep:
+Backup client with defined number of backups to keep
 
 ..code-block:: yaml
 
     backupninja:
       client:
         enabled: true
+        target:
           engine: rsync
           host: 10.10.10.208
           user: backupninja
           keep: 4
 
-  ..note:: The ``keep`` parameter defines number of backups to keep. If not
-    defined it's set to ``7`` by default.
-
 Backup server rsync/rdiff
 
 .. code-block:: yaml