Add form classes
Add support for deleting categories
ADd tworows to p layout
Add some fields to category
Add function for listing all uncreated events
forms for handling events
Update BasicObject
Allow / in last url part
add flash_validation_errors helper
Add validations to event
Implement serverside create of event
Bugfixes in php-markdown
Add visible flag to event
Preview of md content
Backend code for changing event
Create upload structure
Update BO
Admin: edit category etc
Add prefix to BO memcache
Use blockify in preview renderer when needed