The firmware version 4.0 has changed its response to the 'ver' command, so I've added a #define tag to Configuration.h to specify the firmware running in the WiFly
Added getVersion() method to read the firmware version that is running in the WiFly. Note that this returns a string that includes more than just a revision number (like 4.0 or so).
Merge pull request #33 from ejorreto/firmware_ver

Firmware ver