fix issue 2203
automated tests for removeEventSources
event stress test
issue 829, and tests
issue 2263, and tests
update dates in demos
changelog
version 2.1.1
rudimentary recurring events system
to be used by business-hours and constraint system
background event rendering
business hours
overlap and constraint settings for event dragging/resizing and selecting
tweaks
automated tests for background event rendering, event/select constraining
bugfixes tweaks for latest features
automated tests for event/select overlap
optimizations for moment. dont subclass anymore
tweak to stress test
tests for new moment behavior
reintroduce forgotten dropAccept. automated tests