Merge branch 'develop'

* develop: (22 commits)
  Adds post request triggers
  Allows elements to be injected into section containers via theme
  Fixes move menu access control settings
  Wrap tiles rows last
  Fixes sorting of tile options
  Sort blocks in tiles add form
  Fixes access control for block control
  Allow widths to be set for blocks not in block table yet
  Refs #5997: Specified padding, border-radius, and font-family rules to prevent application of theme defaults.
  Refs #5495: Updates markup for section navigation links, to enable Bootstrap scrollspy and tool tip styling.
  Updates help text for deleting a tile section
  Fixes problems with form submitting with bean form
  Allows tiles to be set via node save
  Updates tiles sections to allow arbitrary settings for each section
  Abstracts out menu access, allow other modules to alter access
  Fixes deleting tiles
  Ensure block is a tile before adding type.
  Fixes deleting tiles
  Fixes logic for determining auto deltas for beans
  Potential fix for removing tiles bug
  ...
Fixes tile creation permissions
Fixes problem with setting default value on regions

If 'content' doesn't exist within the allowed regions, it was still being
selected as the default value. Updated to select the first value if content
isn't in allowed tile regions.
Merge branch 'master' into develop

* master:
  Fixes problem with setting default value on regions
  Fixes tile creation permissions