Deleted libusb-1.0.a as it specifically compiled for ARM architecture and hence not usable with other architectures. Both Linux-based COMPILE readmes contain a section on how to obtain this file.
Altered readme after removing pre-compiled libusb static library.
According to debugging, dfu-util should be executable.
Added case for preinstalled dfu-util
Added COMPILE instructions for Ubuntu
In ../linux-armel dfu-suffix is also executable, hence this one might also be so.
Add Ubuntu compile instructions to README.
Added architecture reference.
Merge pull request #7 from NvanAdrichem/niels

Ubuntu compilation support.