Add support for config dotfiles
Only print config file location if verbose switch is set.
Update documentation with config file details
Merge branch 'master' into dotfiles

Conflicts:
	README.markdown
Update config option to be a filename in the config directory.
This makes it easier to use multiple identities
Remove unused --encode option
Use the ConfigParser library to parse the config files.

Automatically prepends:
 * [DEFAULT] section, to provide default values
 * [DUMMY] section header, as ConfigParser doesn't understand key=value pairs
Host option now prevents config from being loaded.

The -H host option is only useful for unauthenticated API calls.
If you want authentication, use a config file, not the -H option.
Various README updates, to make config_file usage clearer
Merge pull request #14 from sneakypete81/dotfiles

Add support for config dotfiles