allow blocks to have an edit_url as data too.
allow blocks to have an edit_url as data too.

If a block has an edit_url in it's data, it will be now used.
bartdc/forkcms,tommyvdv/forkcms,tommyvdv/forkcms,wengyulin/forkcms,jacob-v-dam/forkcms,Katrienvh/forkcms,jonasgoderis/jonaz,forkcms/forkcms,Saxithon/gh-pages,Thijzer/forkcms,dmoerman/forkcms,justcarakas/forkcms,bartdc/forkcms,carakas/forkcms,vytenizs/forkcms,carakas/forkcms,ikoene/forkcms,sumocoders/forkcms,justcarakas/forkcms,sumocoders/forkcms,tommyvdv/forkcms,jessedobbelaere/forkcms,jessedobbelaere/forkcms,lowiebenoot/forkcms,jonasgoderis/jonaz,riadvice/forkcms,jeroendesloovere/forkcms,jonasgoderis/jonaz,jacob-v-dam/forkcms,DegradationOfMankind/forkcms,sumocoders/forkcms,mathiashelin/forkcms,jonasdekeukelaere/forkcms,Thijzer/forkcms,carakas/forkcms,jacob-v-dam/forkcms,jonasdekeukelaere/forkcms,jonasgoderis/jonaz,jonasdekeukelaere/forkcms,nosnickid/forkcms,matthiasmullie/forkcms,lowiebenoot/forkcms,ikoene/forkcms,ikoene/forkcms,DegradationOfMankind/forkcms,jacob-v-dam/forkcms,sumocoders/forkcms,DegradationOfMankind/forkcms,forkcms/forkcms,DegradationOfMankind/forkcms,nosnickid/forkcms,wengyulin/forkcms,vytenizs/forkcms,nosnickid/forkcms,jonasdekeukelaere/forkcms,dmoerman/forkcms,Katrienvh/forkcms,jessedobbelaere/forkcms,wengyulin/forkcms,Thijzer/forkcms,carakas/forkcms,ocpyosep78/forkcms,WouterSioen/forkcms,matthiasmullie/forkcms,riadvice/forkcms,jeroendesloovere/forkcms,Saxithon/gh-pages,vytsci/forkcms,mathiashelin/forkcms,matthiasmullie/forkcms,sumocoders/forkcms,riadvice/forkcms,Katrienvh/forkcms,forkcms/forkcms,dmoerman/forkcms,tommyvdv/forkcms,jeroendesloovere/forkcms,WouterSioen/forkcms,bartdc/forkcms,jonasgoderis/jonaz,jonasdekeukelaere/forkcms,jessedobbelaere/forkcms,forkcms/forkcms,mathiashelin/forkcms,vytenizs/forkcms,Katrienvh/forkcms,jeroendesloovere/forkcms,vytsci/forkcms,ocpyosep78/forkcms,carakas/forkcms,justcarakas/forkcms,mathiashelin/forkcms,riadvice/forkcms,vytsci/forkcms