Merge pull request #272 from maciejlew/master

Adds some hooks
Update initLMS.php

Adds missing CONFIG_FILE constant.
Merge pull request #274 from maciejlew/patch-1

Update initLMS.php
transaction log for customer cutoff stop
selection of customer is possible from customer search popup
'@' character is allowed in voip account passwords
changes in notices display in userpanel default style
Merge pull request #275 from rafalpietraszewicz/master

changes in notices display in userpanel default style
Adds colgroups in voip account templates
Adds colgroups in welcome templates