Renamed optimize.sh to build.sh.
Created a TitleTextField and a DatepickerTextfield in utilities-folder:
 - They are used in PageInput.handlebars and UserInput.handlebars instead of regular Ember.TextField.
 - They are included in the views: PageAdd/Edit and UserAdd/Edit.
 - Removed FormPreparer instead.

 Small refactorings.
Merge remote-tracking branch 'origin/master'