Log Screen Logic Fixed and New Icons

28/05/2013
- Fixed bug where detailed items were displaying the wrong number of
seconds
- Added 'view all entries' to Log screen (sorting still avaliable)
- Added new swim, cycle run icons
- Completely revamped the process of changing months on the log screen
(now uses java's calendar to calculate the exact month/year and uses
that for the SQL query, instead of relying on the problematic SQL '-x
months')