* stk500v2.c: Use stk500isp_read_byte/stk500isp_write_byte for
every byte-wide access (rather than JTAGICE3 only).  This finally
obsoletes the use of the prehistoric SPI_MULTI command where
AVRDUDE used to assemble all the low-level ISP stuff by itself.




git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1336 81a1dc3b-b13d-400b-aceb-764788c761c2
ser_posix: added support for faster baudrates than 230400 on posix based systems
butterfly: implemented a variabel timeout for the erase call in the avr109 protocol. Needed to support AVRs with more than 128kB programm memory.