[example] fix data script paths for flickr fine-tuning
[example] add LeNet to MNIST title, fix paths to be from root
[example] re-title LeNet / MNIST heading too
[docs] update homebrew instructions for boost and boost-python split
[docs] note boost 1.56 an CUDA conflict on OS X
[docs] pip install packages in order for dependencies
[docs] pip install harder
[examples] fix reference model name for flickr fine-tuning
[docs] proofreading suggested by @cNikolaou
Edit boost-python formula
Merge pull request #1309 from CellScope/edit-brew-boost-python

Edit boost-python formula for OS X 10.9 compatibility
Fixing finetune_flickr_style model reported accuracy.
Merge pull request #1315 from sergeyk/master

Fixing finetune_flickr_style model reported accuracy.