Changed the horiz array field layout, add button next to -

autoform-events.js
  Changed the .autoform-add-item event to look for name, minCount & maxCount in context as well as attributes.

autoform-helpers.js
  Added afArrayFieldShowAdd helper (returns classes for the add button and tooltip)
  Added afArrayFieldShowRemove helper (returns classes for the remove button and tooltip)
  Added afArrayFieldIsEmpty helper (checks if an array field has no items to show add button when all items are removed)

bootstrap3-horizontal.html
  Added templates for the add and remove buttons
  Added tooltips for max and min limit reached, also button now shown disabled
  Changed the layout of the array field to look like this:
    Label    - Input
           + - Input

bootstrap3-horizontal.js
  Added initialisers for the tooltip wrappers
Probably should use `{{> afArrayFieldAddButton}}` here, too?