Bug: wrote out the user-creation date in a compressed "basicDateTime" format with none of the standard date punctuation characters (e.g. 20130321T145546+200 instead of the correct 2013-03-21T14:55:46+02:00)

Bug: Failed to correctly calculate age in months as I didn't realise Period.getMonths() is in [0..11]. Now take into account years as well.
Use human readable constant for the standard number of tweets per page
Allows tweets json parer to use an existing HTML tweets parser if already created