WU only needs +2 width
Merge pull request #461 from kanoi/master

WU only needs +2 width
More GPU READMEs.
make all statline overflow safe
size check get_datestamp/get_timestamp and remove unused cgpu->init
cgminer - size check all sprintf
usbutils - size check all sprintf
logging - size check sprintf
force type checking on curses
bflsc increase flush count to handle parallel work
bflsc nonce per work item stats
Merge pull request #462 from kanoi/master

various type checking and overflow checking
usbutils - in init only change the config if needed
set device_drv function noops when first add_cgpu
Merge pull request #463 from kanoi/master

usbutils config & device_drv noops
Merge branch 'master' of https://github.com/ckolivas/cgminer