*8183* Use instance of FileManager instead of static call (FileManager's mkdir method cannot be called static)
*8183* Cleaned function nesting
*8183* Whitespace cleanup
*8183* Register default locale files in registry
*8183* Removed arbitrary paths and added error messages instead
Merge pull request #36 from MichaelThessel/ojs-stable-2_4

*8183* JBImages integration cleanup
[OJS.de] Fix memory leak in hook registry
*8247* Relax not null constraint
no such index setting_name fix
*8252* Correct ADODB 'get last insert index' function
*8252* Remove diffs from ADODB lib directory
*8291* Fix OAIUtils::prepInput call (OJS 2.4.x)
*8411* Fix hover background for font sizer icons
introduce a factory method in VirutlaArrayIterator
*8431* Fix announcement form locale selectors
Use filter in interest queries (apply patch in lib/pkp)
*8254* Introduced metrics table
*8254* Introduced metrics related locale keys
*8254* Introduced file loader base task class
*8254* Move code to find bots to core and make the bot file a parameter