Merge pull request #35 from dennishendriksen/master

Remove FrontController hack + fix tifn properties file + serializable changes
Merge branch 'master' of https://github.com/molgenis/molgenis
Merge pull request #37 from dennishendriksen/master

Generic spinner, fixes spinner in importer
Merge branch 'master' of https://github.com/molgenis/molgenis
add spinner fade effect
only show spinner for recursive (=expensive) server calls
add support for additional sub section