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/cleanup.sh b/cleanup.sh
index 5c0046d..c7f5054 100755
--- a/cleanup.sh
+++ b/cleanup.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-subdirs="compiler/cpp lib/cpp lib/py"
+subdirs="compiler/cpp lib/cpp lib/py if"
 
 rm -rf \
 AUTHORS \