[ticket/11864] Do not call exit after display_progress_bar in acp_forums

The progress bar is called with the method display_progress_bar() in the
acp_forums files. This method then call adm_page_footer() which also calls
exit_handler(). Therefore, the exit; in acp_forums after
$this->display_progress_bar() is obsolete and shouldn't exist in the first
place.

PHPBB3-11864
Merge remote-tracking branch 'marc1706/ticket/11864' into develop-olympus

* marc1706/ticket/11864:
  [ticket/11864] Do not call exit after display_progress_bar in acp_forums
[prep-release-3.0.12] Bumping version number for 3.0.12 final.
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [prep-release-3.0.12] Bumping version number for 3.0.12 final.

Conflicts:
	phpBB/includes/constants.php
	phpBB/install/database_update.php
	phpBB/install/schemas/schema_data.sql
[develop-olympus] Use 3.0.13-dev as build version. Use latest 3.0.12 RC tag.
[ticket/11873] Do not hash very large passwords in order to safe resources.

PHPBB3-11873
[ticket/11873] Add unit test for large password input.

The password should be rejected quite fast.

PHPBB3-11873
Merge branch 'ticket/11873' into prep-release-3.0.12

* ticket/11873:
  [ticket/11873] Add unit test for large password input.
  [ticket/11873] Do not hash very large passwords in order to safe resources.
[prep-release-3.0.12] Update changelog for 3.0.12 release.
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [prep-release-3.0.12] Update changelog for 3.0.12 release.
  [ticket/11873] Add unit test for large password input.
  [ticket/11873] Do not hash very large passwords in order to safe resources.
[develop-olympus] Build against 3.0.12 instead of 3.0.12-RC3. Tag exists now.
[ticket/11876] Move checksum generation from build PHP files to phing build.xml

This also removes paths from the checksum files.

PHPBB3-11876
[ticket/11876] Replace MD5 with SHA256.

PHPBB3-11876
[ticket/11877] Create package links and checksums for announcement via script.

PHPBB3-11877
[ticket/11879] Replace .live() with .on()

PHPBB3-11879
Merge remote-tracking branch 'cyberalien/ticket/11879' into develop-olympus

* cyberalien/ticket/11879:
  [ticket/11879] Replace .live() with .on()
Merge remote-tracking branch 'remotes/bantu/ticket/11877' into develop-olympus

* remotes/bantu/ticket/11877:
  [ticket/11877] Create package links and checksums for announcement via script.
[ticket/11920] Add MariaDB environment to Travis-CI.

PHPBB3-11920
[ticket/11920] Have to use empty root password otherwise db creation fails.

PHPBB3-11920
Merge pull request #1780 from bantu/ticket/11920

[ticket/11920] Add MariaDB environment to Travis-CI.