WINDUP-375: Improve syntax of Basic XML Rules Grammar (Also clean up tests a bit.)
WINDUP-374: Improve Java XML Rules Grammar/Syntax (Also stop using source files as test targets)
WINDUP-375: Updated to fix tests and add a few more verbose error messages
Merge pull request #343 from lincolnthree/WINDUP-375

Windup 375: Improve Basic XML Rules Grammar (Also clean up...