Fix proviser-server assuming the pubkey is JUST the pubkey (removes
header and footer, back and front).
Fix requiring keyType value.
Fix provisor-creator not checking for key validity.
Fix provisor-create validating against other keys than ssh-rsa and
ssh-dsa (temp fix).
Improve error handling
Fix validation issue.
Fix returning only the key value, when the header + key should be
passed.
Merge branch 'master' of https://github.com/hashbang/provisor into develop

Conflicts:
	bin/provisor-create
Flock as fast as possible.
Merge branch 'master' of https://github.com/hashbang/provisor
Merge branch 'master' into develop
Validate key on server by checking keytype for either ssh-rsa or
ssh-dsa.
Merge pull request #5 from necrophcodr/develop

Fix proviser-server assuming the pubkey is JUST the pubkey