improve invalid login error message
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carakas/forkcms,mathiashelin/forkcms,WouterSioen/forkcms,tommyvdv/forkcms,jonasgoderis/jonaz,Katrienvh/forkcms,bartdc/forkcms,Thijzer/forkcms,mathiashelin/forkcms,sumocoders/forkcms,gertjanmeire/davy_portfolio,lowiebenoot/forkcms,matthiasmullie/forkcms,carakas/forkcms,forkcms/forkcms,riadvice/forkcms,forkcms/forkcms,Thijzer/forkcms,jacob-v-dam/forkcms,forkcms/forkcms,jonasdekeukelaere/forkcms,nosnickid/forkcms,sumocoders/forkcms,vytenizs/forkcms,matthiasmullie/forkcms,jonasgoderis/jonaz,justcarakas/forkcms,riadvice/forkcms,wengyulin/forkcms,jessedobbelaere/forkcms,bartdc/forkcms,mathiashelin/forkcms,ikoene/forkcms,carakas/forkcms,nosnickid/forkcms,jessedobbelaere/forkcms,vytsci/forkcms,jonasdekeukelaere/forkcms,DegradationOfMankind/forkcms,tommyvdv/forkcms,matthiasmullie/forkcms,jacob-v-dam/forkcms,jacob-v-dam/forkcms,DegradationOfMankind/forkcms,WouterSioen/daytwo,jonasgoderis/jonaz,WouterSioen/forkcms,sumocoders/forkcms,jonasdekeukelaere/forkcms,Katrienvh/forkcms,jonasgoderis/jonaz,vytsci/forkcms,DegradationOfMankind/forkcms,jeroendesloovere/forkcms,jacob-v-dam/forkcms,mathiashelin/forkcms,jonasdekeukelaere/forkcms,Katrienvh/forkcms,jessedobbelaere/forkcms,DegradationOfMankind/forkcms,ocpyosep78/forkcms,justcarakas/forkcms,jessedobbelaere/forkcms,sumocoders/forkcms,sumocoders/forkcms,jonasgoderis/jonaz,carakas/forkcms,Saxithon/gh-pages,jeroendesloovere/forkcms,dmoerman/forkcms,Thijzer/forkcms,riadvice/forkcms,lowiebenoot/forkcms,wengyulin/forkcms,bartdc/forkcms,forkcms/forkcms,ikoene/forkcms,justcarakas/forkcms,jeroendesloovere/forkcms,carakas/forkcms,Saxithon/gh-pages,nosnickid/forkcms,riadvice/forkcms,jeroendesloovere/forkcms,dmoerman/forkcms,tommyvdv/forkcms,ocpyosep78/forkcms,tommyvdv/forkcms,wengyulin/forkcms,jonasdekeukelaere/forkcms,Katrienvh/forkcms,vytenizs/forkcms,vytenizs/forkcms,vytsci/forkcms,dmoerman/forkcms,gertjanmeire/davy_portfolio,ikoene/forkcms