Modified build.xml in the main branch and the RDR branch to fix the javadoc build.

Removed a character in both branches in the PR.java file that was causing problems with javadoc generation (non-UTF-8).

See #810 (Expose GAS Service)

git-svn-id: https://svn.code.sf.net/p/bigdata/code/branches/BIGDATA_RELEASE_1_3_0@7969 8f7bc0f5-282e-0410-95e3-8d296e9bb460