removed $ from api and control services
renamed control service to 'data'
saved the renaming of control to data
Merge pull request #24 from objectpartners/remove-dollar-sign

Remove dollar sign
Merge branch 'lab-4-modules' into lab-4-modules-solved

* lab-4-modules:
  saved the renaming of control to data
  removed $ from api and control services renamed control service to 'data'

Conflicts:
	client/src/app/employees/employees.js
	client/src/app/projects/projects.js
	client/src/app/timesheets/timesheets.js
renaming $control to data