pulled out th into directive
named css rule with class and removed old one
Convert active and inactive  employees index to new th sortable.
Added sort to chemical records
Deleted old arrow directive
Added new sort to private lessons
Added arrow sort to help desk and slide inspections.
Added arrow to certifications
Sort arrows on time off.
Added new sort to shift reports.
Added to my time off page
adding xs to scope for checking
Merge branch '1375' of https://github.com/duffcodester/digiquatics into 1375
Merge branch 'master' of github.com:duffcodester/digiquatics into 1375

Conflicts:
	app/assets/javascripts/controllers/chemical-records.js.coffee
	app/views/chemical_records/index.html.erb
	app/views/time_off_requests/archived_time_off_requests.html.erb
	app/views/time_off_requests/my_time_off_requests.html.erb
Merge branch '1375' of github.com:duffcodester/digiquatics into 1375
Implementing th head arrows.
Fixed predicate reverse in chemical records controller.
Merge branch 'master' of github.com:duffcodester/digiquatics into 1375
Fixing default sort on various index pages
Added th sortable to missing index pages