Add LOOKING_AT exec flag, implement in simplest case (shortest).
Turn most of the tests back on.
Fix classpath order.
Polish up test case for backreference case.
extend plumbing out to API.
Remove bogus failing lex test.
Track down and fix a problem with the lookingAt optimization.
More test casing.
A better attempt at the LOOKING_AT flag.
Merge pull request #3 from basis-technology-corp/looking-at-support

Add LOOKING_AT flag