Quick initial integration of software keyboard into KA Lite exercises.
Merge branch 'css_cleanup' into software-keyboard
Tweaks to styling for software keyboard.
Adding other mather notations.
Adding clear input field function.
Fixed "next question" displaying issue
Showing Numberpad
Only show the numberpad if it is an andriod device.
Fix some formats
Signed-off-by: wangguan59 <wangguan59@gmail.com>
Merge branch 'develop' into software-keyboard
Show up on all the devices.
Merge upstream ka-lite into ka-lite-central to get securesync hotfixes
Set zone_fallback for FacilityUser and FacilityGroup on central save.

Including TESTS!
Fix to get_zone for FacilityGroup.
Changed get_zone() to zone_fallback in test, for consistency.
Fix student coach report view to generate granular sub topic data for each lower level sub topic.
Created circles representing the completion of subtopics.
Merge branch 'student_coach_report' of https://github.com/rtibbles/ka-lite into student_coach_report

Conflicts:
	kalite/coachreports/templates/coachreports/student_view.html
	kalite/coachreports/views.py
Merge branch 'nalanda-rct2' into nalanda