Makefile.am: replace deprecated "INCLUDES" with "AM_CPPFLAGS"

This fixes the following warning:

warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')
Merge pull request #5 from Mansouu/patch-1

Makefile.am: replace deprecated "INCLUDES" with "AM_CPPFLAGS"
Fix issue with hashrate calculation, display the right nonce in share_result.
Merge branch 'master' of github.com:siklon/usb-miner
Any frequency is supported now.
Add --gc3355-timeout option: restart GC3355 when no share is submitted and timeout expires
Fix GC3355 firmware detection and hashrate display
Fix stability issues with Blades
Autotune: only 5-chip USB miner
Keep some stats upon restart
Fix autogen.sh permission
Merge pull request #1 from siklon/master

merge new commits