- bugfix: install still checks for gsitemap module (#208872)

- task: restructure variables update in hook_update_N
- bugfix: saving htaccess rules does not show error on failure

- bugfix: report broken for unavailable G2 rewriteApi
- bugfix: detect AJAX/Image callback in gallery_handle_request()
  (also fixes javascript issues on 'plugins' administration)

- feature: detect language prefix of the i18n module for embed_uri

- feature: support for multiple image-/grid-blocks
- feature: new install wizard for initial configuration
- task: status page merged into install wizard
- task: cleanup of status rendering and user settings
- various bugfixes (e.g. batch sync, report, gallery_menu, ...)

Clean up of status page.
Some of the install messages are broken - need to be brought in line with the updated status page.

- feature: added G2 plugin status to status field (on general tab)

Used coder to try to clean up code standard (except for the G2 camelCase of
course). A painful exercise! Hopefully I didn't break anything.

- task: added exactsize option for search
- feature: simple report generator (to assist with bug reports)
- bugfix: support for piped arguments in filter tags
- bugfix: several issues with 'Site Admin' group <> 'admin' role sync feature
- bugfix: add code to handle admin user (uid=1) properly after install
- many minor bugfixes

- feature: small feature to hide Gallery text from user profile page (#138139)

- improved user/role sync (incl. batch import/export of users)
- tabbed configuration screens
- better debugging options
- gallery_menu module (link to G2 albums from the menu)