Update Adafruit_CC3000.cpp

Update call to  wlan_ioctl_set_scan_params to enable channels above 11 to be scanned
may set it on fire
updated firmware check
lic
Merge pull request #68 from pocketmoon/master

Update Adafruit_CC3000.cpp
Merge branch 'master' of https://github.com/adafruit/Adafruit_CC3000_Library
updated to synchronize with latest Adafruit master library changes