all code dealing with video clips deleted.

Syndetics no longer offers video clips and they were the only provider.
lightbox can be closed using 'escape'
Refocus on previous element when lightbox is closed (accessibility)
Merge pull request #151 from TriCollegeLibraries/modal-keyboard

Keyboard accessibility for the Bootstrap Lightbox: close on escape and auto focus forms. Excellent work, Anna.
Bootprint view icons restored. Nostalgia for the win.
RandomRecommend module, with tests.
- Resolves VUFIND-681.
Fixed comment.
Added missing templates/CSS.
Merge branch 'master' of https://github.com/vufind-org/vufind
Bootstrap theming for RandomRecommend. Some small tweaks to a similar template.
Added missing error check; expanded tests.
Merge pull request #150 from TriCollegeLibraries/videoclips

all code dealing with video clips deleted.
Doc fix.
Skip the lightbox for Institutional Login.
Added Site/logOutRoute config setting to control post-logout redirect.
- Progress on VUFIND-982.
Minor Bootstrap 2 style upgrade for search controls.
Allow some advanced search elements to be overridden.
- Will be used by forthcoming EDS implementation.
Added mechanism for suppressing display of certain filters.
Added mechanism for applying default filters.
- Resolves VUFIND-505.
Pre-apply default filters to advanced screen for better user control.