Crude password validation
Properties file integration
":" are illegal in windows filenames.
removed conflicting file
removed include of missing validator.

removed confirmPassword from the User DAO, because it should not be saved to the database (only needed for verification).

gitignored picture files.
Merge branch 'flo' into master

Conflicts:
	Skeleton/src/main/webapp/pages/index.jsp
	Skeleton/src/main/webapp/pages/register.jsp