Address issues found with PR #5
Address issues found with PR #5

Removed check if update was already called due to the multiSelect model changing. It isn't necessary, and the flag was preventing needed updates when switching months.
spongessuck/gm.datepickerMultiSelect,spongessuck/gm.datepickerMultiSelect,brenovieira/gm.datepickerMultiSelect,brenovieira/gm.datepickerMultiSelect