Merge pull request #1567 from bantu/ticket/11704

[ticket/11704] phing build script does not include vendor folder, even if there are dependencies
Merge remote-tracking branch 'github-phpbb/develop-olympus' into develop

* github-phpbb/develop-olympus:
  [ticket/11704] Use the correct directory for dependency checking.
  [ticket/11704] Correctly escape "
[ticket/11345] Change font for buttons

Change font to Open Sans

PHPBB3-11345
[ticket/11345] Add Droid Sans as fallback font

PHPBB3-11345
[ticket/11345] Move css import to template

PHPBB3-11345
[ticket/11345] Wrap remote webfonts in S_ALLOW_CDN.

PHPBB3-11345