set custom view for gender dialog
Merge branch 'master' into loginNew

Conflicts:
	catroid/src/org/catrobat/catroid/transfers/ProjectUploadService.java
	catroid/src/org/catrobat/catroid/ui/MainMenuActivity.java
	catroid/src/org/catrobat/catroid/ui/dialogs/LoginRegisterDialog.java
	catroid/src/org/catrobat/catroid/ui/dialogs/UploadProjectDialog.java
	catroid/src/org/catrobat/catroid/web/ConnectionWrapper.java
	catroidTest/src/org/catrobat/catroid/test/web/UpAndDownloadTest.java
	catroidUiTest/src/org/catrobat/catroid/uitest/web/ProjectUpAndDownloadTest.java
	catroidUiTest/src/org/catrobat/catroid/uitest/web/UserConceptTest.java
redesigned dialogs (back buttons, titles, behaviour)