Thrift: Install reflection_limited.thrift

Summary:
Building fb303 is hard enough without including limited reflection.
This change will install reflection_limited.thrift into /usr/share/thrift/if
so it will be easier for fb303 to find (we won't have to dig it out of the
thrift source directory).

Reviewed By: mcslee, marc

Test Plan:
./bootstrap.sh && ./configure && make && sudo make install
(on my vmware box).

Revert Plan: ok


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665230 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/if/Makefile.am b/if/Makefile.am
new file mode 100644
index 0000000..2f269f1
--- /dev/null
+++ b/if/Makefile.am
@@ -0,0 +1,3 @@
+thrift_ifdir = $(datadir)/thrift/if
+dist_thrift_if_DATA = \
+                      reflection_limited.thrift