Merge pull request #50 from seesmith/master

solr related items fix
LIB001-757: Added in max-height 500px if there is enough room
LIB001-614 OAI things
Merge pull request #51 from ianthe/LIB001-757

LIB001-757: Added in max-height 500px if there is enough room
Merge pull request #52 from rentonsa/LIB001-614

LIB001-614 OAI things
LIB001-753: Adding google analytics tracking for audio
LIB001-614 last bits we noticed for OAI
Merge pull request #53 from ianthe/LIB001-753

LIB001-753: Adding google analytics tracking for audio
Merge pull request #54 from rentonsa/LIB001-614

LIB001-614 last bits we noticed for OAI
LIB001-802: Addition of skylight_hostnames array in configs to handle external URLs like exampapers.ed.ac.uk
Merge pull request #55 from ianthe/master

LIB001-802: Addition of skylight_hostnames array in configs to handle ex...
LIB001-788	IOG - Scottish Government Yearbooks Config
Merge remote-tracking branch 'upstream/master'