Fixed issue when installing Thelia on database with special characters
Merge pull request #453 from bibich/issue-452

Fixed issue when installing Thelia on database with special characters
fixes the issue #452
write in uppercase the resource value used in admin_position_block function. Fix #444
fix payment and delivery form. Fix #434
implement seach on category loop.
implement seach on content loop.
implement search on content loop.
fix copy/past issue