Added drug autocomplete endpoint
Added token input for drugs
Added dose button
Can add multiple drugs simultaneously
Refactored out GTCA.TokenizedTextField
Upgraded ember-data (due to bug in belongsTo)
Added condition autocomplete endpoint
Added tokenized, autocompleted input for drugs and conditions
Merge branch 'master' into autocomplete

Conflicts:
	public/javascripts/app.js
	views/patient_dosing_template.ejs