Various updates

Finished api docs for workplace
fixed drag/drop widget placement in workplace
mostly complete save/load of workplaces
mostly fixed doc lookup in semantic explorer widget
fixed doc issue in workplace config for high charts
added html facet definitions in search page (for explorer widget)
fixed bug where version() was called multiple times per page
added value constraint support in options builder
updated planning doc
Updated planning doc
typo fix
Merge branch 'master' into dev
Updated bower code and added tag doc
Merge branch 'dev'
Rebuilt distributions