updated gitignore
Merge branch '3.1' of https://github.com/ReallyGood/phpBB-Hebrew into 3.1

# By Tomer Cohen
# Via Ronny Orbach (2) and Tomer Cohen (1)
* '3.1' of https://github.com/ReallyGood/phpBB-Hebrew:
  zones (Africans, incomplete)
  Update common.php