all code dealing with video clips deleted.

Syndetics no longer offers video clips and they were the only provider.
Bootprint view icons restored. Nostalgia for the win.
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.
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.
Character set declaration should be as early as possible in code.
- Helps avoid Firefox double-load glitch in some cases.
Added limit settings to Primo.
Fixed backend limit bug in Primo.
Made description searchable.