Merge pull request #2 from vathpela/master

Several fixes to problems coverity found.
Fix warnings from gcc
Fix the indentation
Update TODO
Show the hashes in the database
Don't allocate the MOK list until there is a node
Skip hashes while exporting MokListRT
Match the hashes in the database
Support MOK blacklist
Fix the memory leakage
Support import and delete a hash
Reorganize issue_*_request
Merge the hash into an existed signature list
Initialize the request variable to avoid the potential crash
Make test-key and reset support MOK blacklist
Set the verbosity for shim and MokManager
Update the help and manpage
Make the help less verbose

It's all in the manpage anyway.
New options to list the firmware keys
Add more short options