Version 0.27
* Statistics function has been completely overworked.
 - All answers from users are stored now. 
 - Edit, delete or add questions has no effect on existing results.
* Statistics function can also be actived with the option "Show only specific number of questions" now.
* The "Show only specific number of questions" option now works with cache plugins.
* added custom fields
* Quiz mode "Questions below eachother" can now be divided into pages.
* Quiz: added option "Sort questions by category" - Sort questions by category.
* Quiz: added option "Display category" - Category is displayed in the questions.
* Repair Database - Added button in the global settings
* Improved matrix-sorting question type by allowing sort elements to be dragged into any criterion having the same text as the correct answer. (For example, if there are 6 unique sort elements and only 2 unique criterion, then dragging a sort element into any criterion with the same correct name will validate as correct.) 
 - Thanks Grant K Norwood (grantnorwood)
* Added ability to set the table column width for matrix sorting criteria in order to allow longer criteria text. The option is displayed only when matrix sorting is selected as the answer type.
 - Thanks Grant K Norwood (grantnorwood)

git-svn-id: https://plugins.svn.wordpress.org/wp-pro-quiz/trunk@772381 b8457f37-d9ea-0310-8a92-e5e31aec5664