Fixes #17246: Date custom fields can't store dates pre-1970. - part 2
Travis: only use Apache as web server

Workaround for build errors with PHP built-in web server since
30-Apr-2014 [1].

[1] https://github.com/travis-ci/travis-ci/issues/2235
Travis before_script add DB_TYPE

Since PHP >= 5.5 has deprecated mysql driver, we use mysqli instead
Travis before script: PORT was defined but not used
Document ability to display status on bug_report_page.php

Fix for issue #14678 omitted to amend the comment block in
config_defaults_inc.php as well as the documentation.

Fixes #17289
Fix query execution error in user_get_accessible_subprojects()

Because of missing '!' operator, the parameters array did not have
enough values for the query when $p_show_disabled = true.

Regression introduced by 927706b3311407712ee16b9be71f56a974683d73
Merge pull request #54 from mantisbt/master

updates from source master