Renamed LoginForm to better reflect its purpose
Fixed opening Explorer for non existing files

In that case the parent folder will popup, instead of just error message
and nothing done.
Added option to change .p12 certificate via UI
Fixed misplaced name/password in cert generator
Fixed exception, when missing executable to run
Switched to internal tool tp load info about cert

C# X509Certificate couldn't handle it on all expected platforms.
That's why used blackberry-keytool to perform printouts