added translation for german (de_DE)
added ISBN filter rule
Merge pull request #25 from geissler/develop

translation and isbn
Add 5.5 to travis
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
Fixed wrong parameter order in readme
Merge pull request #30 from chrissound/readmefix

Fixed wrong parameter order in readme
add travis build status badge
update docblocks
update meta
update license dates
updated composer
update composer with version 1.0.0
Merge branch '1.0.0'