Assign an ID to the body element to allow individual customization for 'login-page', 'workspace-page' and 'shutdown-page' via a single omv-custom.css file.

git-svn-id: http://svn.code.sf.net/p/openmediavault/code/trunk@1140 3c3d7b80-5828-415e-9f61-280b98178fff
Assign an ID to the body element to allow individual customization for 'login-page', 'workspace-page' and 'shutdown-page' via a single omv-custom.css file.

git-svn-id: http://svn.code.sf.net/p/openmediavault/code/trunk@1141 3c3d7b80-5828-415e-9f61-280b98178fff