Update 1.4.1 DEV

Changes for 1.4.1 DEV include:
-Add ui.draggable item, make demo use it
-Add ui.checkbox item
-More efficient version reporting system after benchmarking
string.format
-More efficient test reporting system after benchmarking string.format
-Fix event.handler::event_handler_make
-Remove JIT handler creation as it was buggy and not needed
-Make ui.ui_container pass tick events (and fix minor event data bug)