Update Panopoly Core for Issue #2506371 by dsnopek, chrisgross, humansky: Media dialog missing styles

This reverts commit 89831476.

Update Panopoly Core for Issue #2516868 by dsnopek: Update to views_bulk_operations 3.3 for SA-CONTRIB-2015-131

Update Panopoly Core and Widgets for Issue #2506371 by dsnopek, chrisgross, humansky: Media dialog missing styles

Update Panopoly Theme for Issue #2093009 by dsnopek: Undefined index: active in theme_panopoly_theme_panopoly_accordion_style_render_region(

Update Panopoly Test for Issue #2507897: Commit composer.lock to increase test performance and consistancy

Update Panopoly Core and Admin for Issue #2507781: Update to jquery_update 2.6 for SA-CONTRIB-2015-123

Update Panopoly Magic and Test for Issue #2496027 by dsnopek: Generate preview markup in a theme function/template

Update Panopoly Core, Admin and Widgets for Issue #2235081 by dsnopek, RobLoach, hefox: Update jquery_update to version 2.5

Update Panopoly Widgets for Issue #2499289 by dsnopek, lsolesen, cboyden: Spotlight titles without descriptions wrapping to a second line

Update Panopoly Admin for Issue #2449855 by hefox, mglaman: Patch breakpoints so it doesn't make cache clear slow on sites with enabled themes not using breakpoints

Update Panopoly Widgets for Issue #2499979 by joegraduate, mglaman: Update menu_block to version 2.6

Update Panopoly Pages for Issue #2500351 by mglaman: SQL Integrity constraint thrown for Panopoly Landing Page permissions on upgrade

Issue #2477303: Drop support for updating from Panopoly version that were release more than a year ago

Update Panopoly Magic and Test for Issue #2155377 by dsnopek, sylus, mpotter, cboyden: Only show one widget preview at a time when adding content in panels

Update Panopoly Core for Issue #2499273: Include Panels and CTools patches for improved keyboard accessibility

Update Panopoly Core, Magic and Test for Issue #2483265 by dsnopek: Update to latest Fieldable Panels Panes (FPP)

Update Panopoly Test for Issue #2371247 by dsnopek, cboyden: Upgrade to Behat 3 / Drupal Extension 3

Update Panopoly Core and Admin for Issue #2492811 by RobLoach, dsnopek: Move jquery_update to panopoly_core.make and .info

Update Panopoly Widgets for Issue #2458677 by mglaman: Add locale language filter to "Add content item" widget View

Update Panopoly Test for Issue #2374827 by dsnopek, Shawn DeArmond: Write Behat test for autocomplete on "Add content item" widget

Update Panopoly Core for Issue #2492841 by RobLoach: Switch from hook_pre_render_styles() to hook_library_alter()

Issue #2183015 by dsnopek: Update scripts/create_test_branch.py for the addition of the 5.5 and 5.6 jobs.