New build (ef74c27)

Instructions for linux:
    rename old (save), clone again, build.

Windows binary: cgminer-4.11.1-windows-gekko-ef74c27.7z
    
Fixed statline overflow.
    + display shows garbage string in windows when driver appended info exceeds 64 bytes.
    + possible trigger for core dump.
    + possible cause of "shutdown signal received" via feedback through ncurses.

Suspended periodic frequency checks.
    + use case does not apply anymore.  free up some traffic on the bus.

Step down BM1384 frequency on shutdown.
    + part of december code lost in r606.