*9003* introduce new hooks
*9003* possibility to overwrite the default behavior for the new introduced hooks
Merge pull request #216 from bozana/newHooks

*9003* Introduce new hooks TemplateManager::fetch and FileManager::deleteFile
Typo
*8998* Fix reviewer statistics server wastage
*8987* Add warning when no author user groups exist
Use consistent function descriptors (references)
*8868* Grid handler reference use to match master for bounce-backs
*8868* Back-port editable file changes to omp-stable-1_1
*8868* Back-port listbuilder changes to omp-stable-1_1
*8868* Back-port grid changes to omp-stable-1_1
*8868* Back-port grid changes to omp-stable-1_1
*8868* Back-port grid changes to omp-stable-1_1
*8987* Fix typo
*8868* Fix editable locale file return value
Fix locale file typo
*8866* Avoid sending review comment notification to authors, avoid sending twice to same user
*8996* (8917 port) Fixed executing actions return
*8868 Fix FormValidatorListbuilder
Merge pull request #221 from asmecher/8998-fix

*8998* Fix reviewer statistics server wastage