Docblock cleanup (mostly style, some typo fixes and return type additions)
Merge pull request #28 from dhaaker/minorfixes

Docblock cleanup
new method addMessages(), to complement Aura.Input Filter::addMessages()
Merge branch 'develop' of github.com:auraphp/Aura.Filter into develop
update message templates
modify translator to deal with array values
add a pseudo-param 'keys' to the InKeys param, for message tranlations