Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12350] Instantiate Mock Dispatcher for modules_test
[ticket/12318] Revert "Pin HHVM version to 3.0.0~precise."

This reverts commit f6614f2078740675ca0228b348500991888c2140 as the install
command started failing with "Version '3.0.0~precise' for 'hhvm' was not found"
in the meantime.

PHPBB3-12318
Merge remote-tracking branch 'bantu/ticket/12318' into develop-olympus

* bantu/ticket/12318:
  [ticket/12318] Revert "Pin HHVM version to 3.0.0~precise."
Merge branch 'develop-olympus' into develop-ascraeus

* develop-olympus:
  [ticket/12318] Revert "Pin HHVM version to 3.0.0~precise."
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12318] Revert "Pin HHVM version to 3.0.0~precise."
Merge branch 'ticket/10851' into ticket/10851-ascraeus
[ticket/10851] Add unit and functional tests for checking attachments

These tests will make sure that fileuploads now work as expected regarding
the check for disallowed content.

PHPBB3-10851
[ticket/12338] Add Template Event overall_footer_page_body_after

implement

PHPBB3-12338
[ticket/12339] more complete params and updated _since version

PHPBB3-12339
[ticket/12353] Fix displayed attachments in ACP

PHPBB3-12353
Merge remote-tracking branch 'Elsensee/ticket/12353' into develop-olympus

* Elsensee/ticket/12353:
  [ticket/12353] Fix displayed attachments in ACP
Merge branch 'develop-olympus' into develop-ascraeus

* develop-olympus:
  [ticket/12353] Fix displayed attachments in ACP
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12353] Fix displayed attachments in ACP
Merge remote-tracking branch 'vsephpbb/ticket/12342' into develop-ascraeus

* vsephpbb/ticket/12342:
  [ticket/12342] Remove spinner and fix useage of ajax on memberlist
  [ticket/12342] Fix the Custom Dates function in UCP Prefs Global
  [ticket/12342] Fix Find a member show / hide script
  [ticket/12342] Use prop() instead of attr() for boolean properties
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12342] Remove spinner and fix useage of ajax on memberlist
  [ticket/12342] Fix the Custom Dates function in UCP Prefs Global
  [ticket/12342] Fix Find a member show / hide script
  [ticket/12342] Use prop() instead of attr() for boolean properties
Merge remote-tracking branch 'vsephpbb/ticket/11962' into develop-ascraeus

* vsephpbb/ticket/11962:
  [ticket/11962] Resize posted images to fit and give them a class
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/11962] Resize posted images to fit and give them a class
[ticket/12339] removed return var

need to learn more about events... evidently

PHPBB3-12339
[ticket/12327] Changing poll result-bars width from absolute to relative

PHPBB3-12327
[ticket/12327] Coding style fixes

PHPBB3-12327