datetimePicker - compare number instead of string.
Fix Android year change swipe.
validate hour and minute's initial value.
Pass through class attribute in ui:timePicker component.

Conflicts:

	aura-components/src/main/components/ui/timePicker/timePicker.cmp
Position dateTimePicker closest to the users.
Make weekday names uppercase.
Localize ampm;fix year swipe.

Conflicts:

	aura-components/src/main/components/ui/timePicker/timePicker.cmp
datetimePicker - disable hover/focus/active styling for mobile.
dt - make sure datePicker is inside viewPort.
datetimePicker - change datePicker to fixed position and add an internal scrollable div.

Conflicts:

	aura-components/src/main/components/ui/datePicker/datePicker.cmp
	aura-components/src/main/components/ui/datePicker/datePicker.css
Temporarily disable InputDateUI->testMonthYearByArrowsButtons.
Merging origin/ssun/master-pending-merge186Patch into master