removing useless method

Is not needed due inheritance
Update localise.php

removing obsolete menu suffix
Merge pull request #97 from javigomez/useles

removing useless method
Install PHP Codesniffer v1.5
[CODE STYLE] Fixing coding style in main files
update doc header
Merge pull request #101 from gunjanpatel/CS4

[CODE STYLE] Fixing coding style in main files
[fix] Custom delete language. Fixes #39
[fix] wrong file permissions
[imp] add confirmation message before deleting language