Merge pull request #128 from seesmith/master

Accessibility fixes
LIB001-463: Video fixes - webm files for Chrome
Merge pull request #129 from ianthe/LIB001-463

LIB001-463: Video fixes - webm files for Chrome
LIB001-689 - Accessibility changes for links
LIB001-695 - Geology css updates for accessibility
LIB001-691- Remove separate abstract listing in record.php
LIB001-696 - Move Geology to use url config listing
Merge remote-tracking branch 'upstream/master'