Untabify
more tests for BitSet
qtest for digest
tests for enum (one of them failing)
bugfix in Enum.clamp
fix doc of Enum.merge
another update to the doc of Enum.merge
many tests for DynArray
many tests for Enum
a few tests for heap
Merge pull request #517 from c-cube/moar-tests

More tests
Merge pull request #510 from Fourchaux/master

Untabify