Significant improvements for forms

Better Autocomplete
Autocomplete / autocomplete-bootstrap now identical
Element ajax validation moved to element
Spinner improvements
Ajax validation on change tab in bootstrap_tabs
Duplicate repeat group with copy now clones correct row
Page ajax validation error display looks like server submit validation
Single element ajax validation errors shown in tooltips

To Do:
1. Fix repeat group duplication so fade works correctly and tooltips are not duplicated on (and stuck on)