Event Recursion - Added event repeat tab and it's form, data gets saved to
the db. Use of tplaner and generation of new event and it's addition to
civicrm_event table. Recursion rules are hard coded here.
Changes include various FORM UI changes, Central copy of Repeat
Configuration, changes in recursion rule on different criterias, display
of connected events on Repeat page
Logic for changes in Recurring event info and other event information
Changes for confirm box for recurring event information and  event
information