Basic support for tabarray

JSON Form had sidebar tab arrays since bootstrap 2 had it,
bootstrap 3 don't so we start of by implementing "ordinary tabs"
tabarrays top, left or right

"tabarray" type now takes an extra option, "tabType" that defaults to 'left'.
If 'left' or 'right' tabs will use https://github.com/dbtek/bootstrap-vertical-tabs
'top' gives you ordinary tabs

Added bower dependency on https://github.com/dbtek/bootstrap-vertical-tabs