4/4/2013 - version 1.1.6:
   - changed showStatus() to use character based input due to large IDs
3/26/2013 - version 1.1.5:
   - Changed 'blockOnRateLimit' (boolean) to 'retryOnRateLimit' (integer). If
     this value is supplied (to any of the twitteR API wrappers) the system
     will retry up to N times if Twitter's rate limit in effect. If the 
     retry limit is reached (even if it was 0) twitteR will now try to return
     any partial results that had been accumulated prior to the rate limit
     (with a warning) 
   - Added function getTwitterOAuth(consumer_key, consumer_secret) which is a 
     wrapper around the ROAuth creation/handshaking process which embeds the
     Twitter URLs. Will also call registerTwitterOAuth for you and then return
     the OAuth credential so you can save it for future use if you wish.
   - ROAuth (>= 0.9.4) is now a Depends
3/18/2013 - version 1.1.4:
   - Allow for by-hour filtering in since/until
3/17/2013 - version 1.1.3:
   - Fixing bug from abicky's bugfix - search now works properly w/ max_id
3/16/2013 - version 1.1.2:
   - Bug fixes from abicky, remove a browser in statuses.R
3/3/2013 - version 1.1.1:
   - Added 'longitude' and 'latitude' fields to the status class,
     pulls from the 'coordinates' field of a tweet (when available)
3/1/2013 - version 1.1.0:
   - Release
2/23/2013 - version 0.99.28:
   - Added profileImageUrl to User class, along w/ getProfileImageUrl() method
2/9/2013 - version 0.99.27:
   - Added includeRts option to userTimeline
   - Updated man pages and vignette to pass check
1/21/2013 - version 0.99.26:
   - use rjson 0.2.24 to avoid some unicode issues
   - supply argument blockOnRateLimit which does what the name suggests
1/2/2013 - version 0.99.24:
   - Convert search to the 1.1 API
12/27/2012 - version 0.99.23:
   - Conversion for the 1.1 API
   - Multiple functions (e.g. publicTimeline()) were removed due to
     the corresponding functionality being removed from the API
   - The trend system has been completely rewritten
   - The rate limit system has been completely rewritten
   - The friendships() function has been added
2/20/2012 - version 0.99.19:
   - Fixed a bug in lookupUsers where screen names that had upper
     case characters in them weren't being properly populated
   - Switched (temporarily) to rjson in order to properly handle unicode
     text data from Twitter
   - Changed DM sender_id and recipient_id to be using the corresponding
     id_str