Only Displays units from 101 onwards
Merge pull request #2561 from anuragkanungo/nalanda-rct3

Only displays units from 101 onwards
Updates condition/group of units 101-103
Merge pull request #2562 from anuragkanungo/nalanda-rct3

Updates condition/group of units 101-103
Allow unit to be changed even when original value was outside range.
fix UnitSwitchTests
fix SwitchTests
fix test_nalanda_input_exercise again
Merge pull request #2564 from jamalex/unit_setting_fixes

Allow unit to be changed even when original value was outside range.
set the default unit to the first entry in kalite.playlist.UNITS
set the unit of test_exam_mode_shut_out to 101
also set the unit first for test_set_current_unit_first