[example] include imports in net surgery
[example] set phase test for fully-convolutional model
[docs] fix citation bibtex
Updated documentation to include instructions to install protobuf with Python support on Mac OS X
Updated installation docs for OS X 10.9 brew install protobuf as well
If specified, --gpu flag overrides SolverParameter solver_mode.
[example] add fully-convolutional efficiency note + confidence map

- spell out fully-convolutional efficiency
- add confidence map
- fix input size: 451 x 451 is correct for an 8 x 8 output map by the
  equation input size = 227 + 32(d-1) for output map dimension of d
Merge pull request #4 from BVLC/master

updates