Reverted class "constants" to uppercase

Another improvement to readability… probably

Changed class variables to lowercase; added offset argument to all read() functions to make result.read() less complex; moved to bitbucket.org

Converted ignore file to Mercurial

Minor tweaks to turn generator

Can generate valid empty TRN file (with no commands)

Can read general data (with player & turn number, etc)

Can read ship coordinates (ShipXY)

Can read enemy contact data (targets), minor tweaks, unicode support

Can now read messages in RST files

Prefixed "private" functions with underscore to indicate they shouldn't be called directly

Removed LEECH and UFO sections, as I'm not sure if I'll implement them

Rewrote result.py to use functions, not a singleton static class contraption

Added Planet player data class

Start with ResultFile class; added Ship player data class

Started work on player data classes, simplified field dictionaries

Minor tweaks & added FILENAME constant for each class

Further improved and simplified class definitions

Added classes for Hulls, Engines and Torpedoes

Further optimizations & refactoring of PlanetsData class