Added plugin language files for Azerbaijani language.

git-svn-id: https://plugins.svn.wordpress.org/booking-calendar-contact-form/trunk@1046291 b8457f37-d9ea-0310-8a92-e5e31aec5664
Added info about Azerbaijani language.

git-svn-id: https://plugins.svn.wordpress.org/booking-calendar-contact-form/trunk@1046309 b8457f37-d9ea-0310-8a92-e5e31aec5664