v0.1.0, 2014-03-17 -- Initial release.
v0.1.3, 2014-05-15 -- Added sshautoconfig command, added support for
                      ~/.keystok/access_token, moved cache directory to
                      ~/.keystok/cache, fixed some miscellaneous issues.
v0.1.4, 2014-05-20 -- Include application id in cache path, create parent
                      directories when needed, print "get" keys to stdout
		      and without extra trailing newline, support storing
		      access token in ./.keystok/access_token.
