Qt GUI for `keyringer`

A PyQt-based GUI for keyringer.

Implemented functionality:

Keyringer commands:

encrypting/decrypting/displaying/editing a secret
- append / append-batch
- decrypt
- edit / open
- encrypt / encrypt-batch
copying a secret
- clip / xclip
check
commands
commit
cp
del / delete / rm
destroy / teardown
find
genkeys / genpair
git
help / usage
ls
mkdir
mv
options
preferences
pwgen
recipients
recrypt
rmdir
sclip
shell
tree

Specifications are here.