Added raphael.js
Make buttons flow correctly in skill prereq editor
Minor UI tweak
Debugging skillPrerequirementEditor.js
Show course or competence name in edit view heading
Renamed skillPrerequirementEditor as skillEditor
Fixed a bug in skillEditor

A newly added prerequirement is now correctly shown in search results
when current target skill is changed.
Fixed Competence names to be shown correctly in skillEditor
Merge branch 'master' into skill_editor