Fix Vector table issue for flash target (Vector table was in flash, so when we'd get an interrupt while writing to flash, we'd crash)

Add stack guard word and check.
Merge pull request #3 from ekiwi/master

Make pixymon build on Fedora 20 with QtCreator 3.0.0 and  Qt 4.8.5
Fix SPI issues---
GPIO was stepping on video (because it uses GPIO too)
Change SPI interrupt scheme
updated arduino code to handle protocol tweaks.
Fix chirp funky state issue. Init response was being lost because Pixy was busy retransmitting, so added timeout to fix.
Changes for Mac support
Mac changes
Fix USB High Speed issue with Mac by increasing wMaxPacketSize
I2C testing
Mac deploy changes/files
Merge branch 'master' of https://github.com/charmedlabs/pixy
more mac install stuff
More mac changes
Firmware upload fixes
changes to pixyflash (updates)
Choose 32-bit build (even though 64 works), check in 32-bit version of libusb
Add i2c, iserial and serial module
Merge branch 'master' of https://github.com/charmedlabs/pixy
disable test code
I2C working with new serial classes
i2c support working from arduino side
SPI working again