Added method "invert" to Baggy, as per TimToady's mumbling
Moved method .chrs from Iterable to Cool, as per other TimToady mumbling
<?before '#'> to <?[#]>
Make sure @a:exists and @a:delete tests are run
first attempt
Merge pull request #211 from grondilu/combinations

List.combinations and List.permutations
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Merge pull request #212 from grondilu/combinations

fixing indentation
Merge branch 'nom' into cursless

Conflicts:
	tools/build/NQP_REVISION
Undo before removal in unsp.
Undo a before to cclass that busts LTM.
Undo one more before -> cclass.
Bump to NQP with fixes/improvements for cursless.
Avoid line-pos cache recomputations; timotimo++.
Use recursion_limit method from HLL:Compiler.
Part 1 of bringing Set/Bag up to spec again
Part 2 of bringing Set/Bag up to spec again
Part 3 of getting the Set/Bag tests up to spec again
Introduce QuantHash
Start using nqp::flushfh.

Fixes .flush, and also prompt(), on JVM.