Merge pull request #2 from aferenz/remove_quick_link_pl

remove_quick_link_pl
Merge pull request #1 from aferenz/string_change_pl

string_change_pl
swapped tabs so Programmes are followed by Courses
Merge pull request #3 from aferenz/swap_tabs_pl

Swap_tabs_pl
Added language string. If 'Course (all years)' missing from IDM data then display something sensible.
Fix bug: if 'Course (all years)' missing from IDM data then display something sensible.
Handle course visibility. Note that this will need testing once final db schema has been agreed.
Fix bug: only show 'Nothing to display' message if there's nothing to display.
Fix bug: oops! More haste less speed :-(
Fix bug: okay, so I'm getting a bit fed up now.
Before constructing HTML, start with an empty string.
User can configure a 'Programme Level' block only if they have the relevant capability.
Version updated.
User can configure a 'Programme Level' block only if they have the relevant capability.
New capability requires a language string.
Remove redundant file.
Add capability to show hidden courses.
Fix bug UALMOODLE-176/168: Include option to display hidden courses.
Up the version number.
Add capability to show hidden courses.