v1.2.0

• twtxt package is now executable
• twtxt is now available as wheel archive
• Check status of feed before following a new source
• Added a source option to timeline command to only show one specific source
• Added a view command which is basically an alias for the source option
• Added support for local caching of remote twtxt files
• Added support for mentions, see README.rst for more information
• Added a pre_tweet_hook option, works like post_tweet_hook
• Added a porcelain option, styles output script-friendly