eunit: fix dialyzer warnings introduced in 03da5e0b
Document support for abbreviated commands
Mention rebar -c/--commands
Merge pull request #232 from tuncer/doc-abbrev-cmd

Document support for abbreviated commands
Merge pull request #230 from tuncer/fix-dialyzer-warnings

eunit: fix dialyzer warnings introduced in 03da5e0b
docs: fix #228
Merge pull request #233 from tuncer/commands

docs: fix #228