Contact Form 7 2.4.4

Contact Form 7 2.4.4. It includes translation updates and some small fixes.

Change Log

1. Translation for Sinhala has been created by Nitin Aggarwal.
2. Translations for German (Ivan Graf), Russian (Denis Voituk), Simplified Chinese (Keefe Dunn), Polish (RafalDesign), have been updated.
3. Fixed a bug causes wrong [_url] special mail tag output.