Adding Arduino as ISP sketch (firmware) and programmers.txt entry.

Author: damellis

programmers.txt

@@ -1,6 +1,6 @@
 avrisp.name=AVR ISP
 avrisp.communication=serial
-avrisp.protocol=stk500
+avrisp.protocol=stk500v1
 
 avrispmkii.name=AVRISP mkII
 avrispmkii.communication=usb
@@ -13,3 +13,8 @@ parallel.name=Parallel Programmer
 parallel.protocol=dapa
 parallel.force=true
 # parallel.delay=200
+
+arduinoisp.name=Arduino as ISP
+arduinoisp.communication=serial
+arduinoisp.protocol=stk500v1
+arduinoisp.speed=19200