Russian translation for phone validation string
Reverted unnecessary line removal in russian translation
Merging with upstaream
Messages 'minwords', 'maxwords', 'rangewords', 'greaterthan', 'lessthan', 'beforedate', 'afterdate' and 'americandate' translated to Russian
Merge pull request #253 from alrusdi/master

Russian translation for phone validation string
Fix typo
Merge pull request #258 from vsn4ik/master

Fix typo
Create messages.ar.js

Arabic translation.
Merge pull request #260 from zezont4/patch-1

Create messages.ar.js
Chinese description mistake
Merge pull request #268 from wufeng87/master

Chinese description mistake
- fixed typo in README and doc
Fixed issue where length property was called on null value
BUGFIX: americanDate validator

* Fix bug preventing october months from validating with `americanDate`
  validator.
Merge pull request #280 from P-Rikhi/bug-fix-americandate

BUGFIX: americanDate validator
adds WTForms integration link to documentation
adds WTForms integration link to readme
Update messages.fr.js

beforedate/afterdate/luhn/americandate localisation FR
Merge pull request #301 from Endzakiel/patch-1

Update messages.fr.js
Merge pull request #299 from johannes-gehrs/master

adds WTForms integration link to documentation