Merge pull request #90 from robintaylor/master

LIB001-579 Tidy up search results page
Merge pull request #91 from robintaylor/master

LIB001-579 Tidy up Physics sort options
Merge pull request #92 from robintaylor/master

LIB001-579 Handle Physics images correctly
Merge pull request #93 from robintaylor/master

LIB001-579 Correct Physics header title
Merge pull request #94 from robintaylor/master

LIB001-454 Add Goggle Analytics code to Physics