* Mostly tightening up the details on the hkp4py example script.
* Also fixed a typo in the LGPL boiler plate text included in all the
other example scripts for the HOWTO.
* Script to create a temporary gnupg homedir in the user's directory
for testing or scripting purposes.
* Creates a hidden directory on POSIX systems with the correct
permissions (700).
* Creates a gpg.conf in that directory containing the same
configuration options as used in the "Danger Mouse" example in the
HOWTO with the correct permissions (600).
