Get the FPF master signing key from a keyserver, closes #742.
Updated to use "we" instead of "I", resolves #748.
Define format of public keys and fingerprints, resolves #750.
Update guides to specifically check the fingerprint of a GPG key after
importing it.
Add a note about migration scripts for those upgrading from 0.2.1,
resolves #259.
Merge pull request #770 from runasand/develop

Documentation updates