Merge pull request #13 from vazexqi/ASTJavaTypeInference-PrimAndStringOp-bug

Add the test file to com.ibm.wala.cast.java.test.data/src for pull request #12
don't commit test_project.zip
rename com.ibm.wala.cast.java.jdt.test to com.ibm.wala.ide.jdt.test

It looks like this change was made partially before, but maybe not
completed?  Anyway, this gets our JDT test launchers to work again.
more informative assertion
patch up build.xml for project rename
update ignroes
work on CHA
Merge branch 'master' of https://github.com/wala/WALA.git
Merge commit '62575de5671597734d34a3e0fa7cddc9dfd5498c'