[ticket/11700] Fix installation after develop merge

PHPBB3-11700
[ticket/11700] Fix authentication acp after develop merge

PHPBB3-11700
[ticket/11700] Oh dear modules. Abort! Retreat!

PHPBB3-11700
[ticket/11700] Actually "one" in comments is not a class

PHPBB3-11700
[ticket/11700] The word "them" in a comment is not a class

PHPBB3-11700
[ticket/11700] travis has hardcoded driver class names without namespaces

PHPBB3-11700
[ticket/11700] Default db driver for tests must not lead with \

PHPBB3-11700
[ticket/11700] The driver is namespaced now, so properly replace it

PHPBB3-11700
[ticket/11700] Fix a few more comments

PHPBB3-11700
[ticket/11700] Fix another case of non-namespaced classnames

PHPBB3-11700
[ticket/11700] And some last comments with backslashes

PHPBB3-11700
[ticket/11700] Check for ALLOW_REMOTE_UPLOAD in acp output as expected

PHPBB3-11700
[ticket/11700] Fix leftover backslashes in comments

PHPBB3-11700
[ticket/11700] Correctly generate lang key from avatar driver class

PHPBB3-11700
[ticket/11700] Load avatar explanations correctly from namespaces

PHPBB3-11700
[ticket/11700] Correct service definitions with namespaces

PHPBB3-11700
[ticket/11700] namespacify phpbb_permissions class

PHPBB3-11700
[ticket/11700] Use underscores in avatar driver template file names

PHPBB3-11700
[ticket/11700] Correctly convert old acm type to namespaced class name

PHPBB3-11700
Merge remote-tracking branch 'EXreaction/ticket/11832' into develop

* EXreaction/ticket/11832:
  [ticket/11832] Correct paths in tests
  [ticket/11832] Correct ROOT_PATH variable
  [ticket/11832] get_url() from phpbb_template_asset should return web path
  [ticket/11832] Fix INCLUDE(JS/CSS)
  [ticket/11832] Fix constructions of phpbb_filesystem
  [ticket/11832] Fix smiley paths
  [ticket/11832] Create phpbb_symfony_request to handle initiating symfony_request
  [ticket/11832] Fix build_url and the S_LOGIN_ACTION
  [ticket/11832] Changing comments to say app.php rather than index.php
  [ticket/11832] We must instantiate the $phpbb_filesystem in common
  [ticket/11832] Fix the web path corrections
  [ticket/11832] More extensive testing
  [ticket/11832] Use dirname(__FILE__)
  [ticket/11832] Use $phpbb_filesystem instead of the container in append_sid
  Revert "[ticket/11832] Make $phpbb_container a global initiated by the framework"
  [ticket/11832] Make $phpbb_container a global initiated by the framework
  [ticket/11832] Fix log tests
  [ticket/11832] update_web_root_path helper and tests
  [ticket/11832] Inject dependencies for phpbb_get_web_root_path (also moving)