adding as() and get() to durations
Added nodeunit as devDependency

nodeunit is needed as a direct dependency for grunt tasks zone and zones.
Merge pull request #706 from ichernev/bug/nodeunit-dep

Added nodeunit as devDependency
Merge pull request #701 from icambron/durations-as-anything

adding as() and get() to durations
fix as() tests
added slovak language
Merge pull request #707 from icambron/durations-as-anything

fix as() tests
Merge pull request #709 from k2s/develop

added slovak language
Update ar.js

Two versions in months together and changes in weekdays,
so that the translation is more general.
Partially update ar tests 'format'
Update ar.js

Update ll of 'format' in tests
Update ar.js

Attempt to update 'format month' in tests for ar
Update ar.js

Attempt to update 'format week' for ar tests
Update ar.js

More detail in parse message for ar testing
Added support for three word arabic months
Removed commented code
Merge pull request #712 from ichernev/bugfix/fixed-arabic-months

Bugfix/fixed arabic months
internal normalization of unit strings
reverting whitespace change
preferring single quotes