Add python 3.2 to travis monitor.
Change Item class
- _before attribute.
- .after_append method - for append item to _after
- .after_count - count items in _after
Add first empty list and last empty list to data array if no exists.
Format data array: [list, string, list, string, ... , string, list]
Refactor .load method for Parser.
+ support prev commit changes (with .parse() method for blocks and sentences)