Twizy release 3.4.0
    - Automatic recuperation level adjustment from BMS max power reading
    - SEVCON auto-login retries on switch-on
    - Power map debug output optimized
    - CFG POWER now allows power_low param up to 139% (same level as high=130%)
    - Send power statistics only if 25+ Wh used
    - Collect power (/current) min/max values per GPS section
    - Preop mode safety check in configmode() to protect against delayed SMS
    - Accel/decel stats now based on running average of speed changes
    - Client scripts now generate CSV header lines

Note: had to exclude Tesla Roadster specific CAN data from diag module
 to get space. If other cars need these, a new preprocessor switch
 can be introduced.