arscons isn't working with Arduino Leonardo

[schadocalex]

Hi!

I'm having problem trying to upload a very simple program (blink sample) with scons on LEONARDO board. When i use Arduino IDE it works well with the Leonardo, but scons can't dialog with it.

This is what i got:
Connecting to programmer: .
Found programmer: Id = "TESTATA"; type = A
Software Version = T.E; Hardware Version = S.T
avrdude: error: buffered memory access not supported. Maybe it isn't
a butterfly/AVR109 but a AVR910 device?

I tried with AVR910 and AVR911 but it's worth.

[jonsnow1357]

the attached diff file adds support for leonardo.
It also has some small refactoring (brackets for print) and bug fixes.

Hope it's accepted in the main :)

leonardo.diff.txt