Added spec for valid User#email validation
Added spec for valid User#email validation

despora/diaspora,diaspora/diaspora,geraspora/diaspora,jhass/diaspora,Amadren/diaspora,Amadren/diaspora,geraspora/diaspora,spixi/diaspora,diaspora/diaspora,KentShikama/diaspora,spixi/diaspora,diaspora/diaspora,Flaburgan/diaspora,Muhannes/diaspora,geraspora/diaspora,Muhannes/diaspora,Flaburgan/diaspora,KentShikama/diaspora,Muhannes/diaspora,spixi/diaspora,despora/diaspora,KentShikama/diaspora,jhass/diaspora,Amadren/diaspora,spixi/diaspora,jhass/diaspora,Flaburgan/diaspora,SuperTux88/diaspora,despora/diaspora,geraspora/diaspora,SuperTux88/diaspora,Amadren/diaspora,diaspora/diaspora,SuperTux88/diaspora,jhass/diaspora,KentShikama/diaspora,Muhannes/diaspora,despora/diaspora,SuperTux88/diaspora,Flaburgan/diaspora