Added #include <delay.h> to supress warning message
Set faster clock to handler loop.

Made platform_set_clock() global function.
Initial HTTP GET support.

Added commands to enable gprs.
Added initial HTTP GET support. This differs from final API that is defined in wiki.
Example of use:
	gsm.set_power_state(gsm.POWER_ON)
        gsm.gprs_enable("internet.saunalahti")
	doc = gsm.http_get("http://www.google.fi")
Added HTTP POST support.
Add GPS message parser (based on SLRE regexp library).