Allow override of used templates
Allow override of used templates

By using the main templates instead of passing them into `$options`, it
allows users to pass in custom templates to override the built-in ones.

ayman-alkom/bootstrap-ui,deizel/bootstrap-ui,QueenCityCodeFactory/bootstrap-ui,ayman-alkom/bootstrap-ui,deizel/bootstrap-ui,FriendsOfCake/bootstrap-ui,thinkingmedia/bootstrap-ui,FriendsOfCake/bootstrap-ui,thinkingmedia/bootstrap-ui,QueenCityCodeFactory/bootstrap-ui