OO-938 remove old code that tried to support escaped comments, does not work with column selection anymore.

OO-942 make velocity parser pool size configurable, fix regression on extension manager on simultanious first user login

OO-941: clean up event's id before sending them to fullcalendar, and update the equals methods to match the cleaned up ids

OO-940 set explicit z-level for b_page_margins to fix interference of date picker with file input field

OO-922 refactored default tools in collab tools to be thread save, disable wiki run when sec setting, chelp and i18n for security module

OO-929: remove version on UserCourseInfos (move from optimistic locking to last commit win), rewrite the update method, refactor the UserCourseInfos mapping to use annotations

no-jira: import javassist to enhance the classes for the hibernate mapping, use the log4j implementation of wildfly