enable regex special characters as delimiters

Special chars like quantifiers or control characters can be used
as delimiters. If they are used as delims they cant be used for
their original meaning, of course.
add brackets from STD

This only adds brackets, none is removed.
Fix reporting of errors in gather/take.
iEnsure NQP JVM bulids in master.

So the first release with it actually has it building.
fixed typo
bump VERSION to 2013.05
be smarter about guessing Darwin architecture

Closes #100
Document invocation spec in the serialization format description.
Merge branch 'master' into rak-jvm-support