Fix from focabr: Have isAssociated() get the latest status from the WiFly so matches the current state
Added time() function that updates the time

From the documentation: "This command sets the real-time clock by
synchronizing with the time server specified with the time server (set
time) parameters. This command sends a UDP time server request packet."
Added sleep() with wake timer

Added the sleep() command.  Calling it with (seconds) will set the
system wake timer before putting the module to sleep.
Merge pull request #28 from OrganicIrradiation/master

Added time() and sleep() functions
Add support for latest version of Arduino IDE (1.04/1.05)
Fix a bug in open() where the port was a signed integer when it should be an unsigned 16 bit integer (0-65535)
Added bandwidth monitor example for Fritz Box router using SOAP request
Add example sketch for monitoring a routers receive data rate using SNMP
fix an off-by-one bug for the peek buffer.  Would have overrun the end of the buffer, potentially damaging the peekhead value
Fix sleep default warning, add missing SNMP UDP port setting for bandwidth_snmp demo
clean up