imagenet fix: ilvsrc -> ilsvrc
Added Performance and Hardware Tips
Added Link in index.md to perfomance_hardware.md
proofread, fix dead link, standardize NVIDIA capitalization

Thanks NVIDIA for the GPUs!
make build_docs.sh script work from anywhere
drop caffe presentation in favor of dropbox link
Include k40 images per day benchmark
add /etc/rc.local hint for boot configuration of gpus
strip confusing confusing comment about shuffling files