Implement Enum.equal? with equality callback
Implement Keyword.delete_first, closes #984
Implement Dict.equal?
Merge pull request #985 from ericmj/exunit_exit

Handle exit messages from tests in ex_unit
Merge pull request #986 from meh/keyword-delete_first

Implement Keyword.delete_first
Merge pull request #980 from meh/dict-equal

Implement Dict.equal?
Return early in Dict.equal? if the dicts have different size
Merge pull request #988 from meh/dict-equal

Return early in Dict.equal? if the dicts have different size
Return nil from import
Clean up conversion to list
Ensure imports are passed around arg by arg, closes #990
Calculate target just once
Merge pull request #983 from meh/enum-equal

More Enum.equal? stuff