Polishing login layout
Added titles to views
Improving navigation
Making course graph work in positioned divs
Make graph view detect cycles
Merge branch 'skill_editor'

Conflicts:
	app/views/curriculums/courses/edit_prereqs.html.erb
Minor navigation improvements
Fixed a graph rendering bug
Minor layout fix
Adjusting course importer
Adding skillEditor.js to precompiled assets
Sort courses by name
Minor navigation fix
Underline direct prerequisites in graph view
Make course links go directly to edit-prereq
Added instruction links for teachers
Changed skill id in skillEditor to be an observable

This fixes prereqType calculations when new skills are created.
Added 'saving..' indicator to skillEditor
Bugfix: Changing curriculum's name now works correctly

The javascripts needed by the modal were disabled, which prevented
the modal from working correctly. In addition to reincluding the
JS-files, the text field for the name has also been enlarged.
Merge branch 'master' into skill_editor

Conflicts:
	config/locales/courses.en.yml
	config/locales/fi.yml