Created v_0_4 branch
Changed train refering to trainId instead of serviceCode
Added places dict for improved performances
Improved simulation loading time

Created v0.4 file format including links between items so as
not to recompute them during file loading.
Code reorganisation
Upgrade simulations sources to v0.4 format
Made service list in editor sortable
Added message logger
Added scoring system
Updated README
Added random delays to trains
Fixed rounding minutes in scorer
Fixed bug of blocked route

+ updated French translation
Cleaning up
More cleaning up
Added save game support
Added trackcircuit based simulations support
Fixed bugs

- Trains no longer overlap (except on first track item of the scene)
- Routes set just behind a train are no longer de-highlighted when
train advances.
Updates before v0.4 releases
Merge pull request #13 from npiganeau/V_0_4_BRANCH

V 0 4 branch