Added asset_id column to linkset links
Buffix: linkset doesn't become editable again after cancelling
Added classes for small edit buttons
Improved linkset editor with ability to edit link text and set a link asset
Only show slide caption, title, and link options in slideshow editor if explicitly enabled
Added link text option to slideshows
Removed duplication in chunk slideshow widget
Fixed linkset asset ID and slideshow link text not copied when a new page version is created
Increased allowed length of slideshow titles
Merge branch 'master' into feature/refactoring