Merge pull request #120 from matthesrieke/dev

Terms Of Use REST resource integration
Merge pull request #122 from matthesrieke/dev

disable email whitelist
fix 500 ISE with HEAD requests
Merge pull request #132 from autermann/head-fix

so true. merging.
don't validate TermsOfUse against missing schema
Merge pull request #133 from autermann/terms-of-use-validation

Do not validate TermsOfUse against non-existing schema
Merge pull request #8 from enviroCar/dev

Dev