Fix my nonsensical variable names.
Make training iterations 0-indexed.
Move loss display before lr display in ComputeUpdateValue.
Merge pull request #800 from jeffdonahue/zero-indexed-train-iter

Make training iterations 0-indexed to display training loss in 0th iter
Symlink to tool bins without the .bin extension
Merge pull request #802 from jeffdonahue/caffe-bin-symlink

Symlink to tool bins without the .bin extension
Only install the minimal CUDA subpackages necessary for building.
Merge pull request #806 from jeffdonahue/travis-minimal-cuda

speed up Travis build by installing only the CUDA subpackages necessary for building
set_mode to CPU in ArgMaxLayerTest constructor to avoid random Travis
failures.
Merge pull request #807 from qipeng/dev

relaxed timer test requirements