Update inotool and fix `ino upload'.

0.3.5 is just a patch-release (no code changes). More important is the
patch to the upload-command. It now uses the nix-supplied avrdude
instead of some random avrdude it finds (in the arduino distribution
or wherever).

Signed-off-by: Moritz Ulrich <moritz@tarn-vedra.de>
Merge pull request #836 from the-kenny/fix-inotool

Update inotool and fix `ino upload'.