Coursepicker new layout and styles
- Created styles for ALL main functionalities
- Applied said styles to Coursepicker
- Refactored some generic SASS styles
  - Removed padding from .co-widget
	- added new mixin called "padding"
	- added new variable for text content padding
Layout tidying
coursepicker button styles
Icon updates
Coursepicker
- Filter styles
- Button styles
Coursepicker styles
Button category functions in passingthrough.js
Course listings
All courses listings
Coursepicker listings
-toggling a list item
Coursepicker dropdown functionalities
Coursepicker search
Filter javascripts
Changed ln classname to ft
- Fixed "My courses"
- Fix to signup button
Relocated scripts from passingthrough.js to coursepicker.js
- CoursePicker search stuff
Coursepicker mycourses
Merge branch 'FTR-42-coursePicker' of
https://github.com/otavanopisto/muikku.git into FTR-42-coursePicker

Conflicts:
	muikku-core-plugins/src/main/resources/META-INF/resources/scripts/gui/coursepicker.js