Merge remote-tracking branch 'origin/7.x-4.x' into 7.x-4.x-admin_interface

Conflicts:
	springboard/modules/springboard_admin/springboard_admin.module
re #768 - adding redirect from /admin to /admin/springboard for user roles that get the SBUX
re #768 - updating submit handler to use new helper function.
re #768 - adding documentation
formatting clean up
Merge branch '7.x-4.x-admin_interface' of https://github.com/JacksonRiver/springboard_modules into 7.x-4.x-admin_interface

Conflicts:
	springboard/modules/springboard_admin/springboard_admin.module