FS-29 Added: saving accepted certificate, saving username and passwordHash, saving server information
Rename function name, valid certificate
Added certificate validation
FS-29 fixed review issues
FS-29 fix review issue
Merge branch 'FS-29'

Conflicts:
	src/main/java/org/fides/client/App.java
	src/main/java/org/fides/client/ui/AuthenticateUser.java