Tag Mocha v0.0.3

[Mocha.jl](https://github.com/pluskid/Mocha.jl) release v0.0.3

## v0.0.3 2014.11.27

* Interface
  * IJulia-notebook example
  * Image classifier wrapper
* Network
  * Data transformers for data layers
  * Argmax, Crop, Reshape, HDF5 Output, Weighted Softmax-loss Layers
* Infrastructure
  * Unit tests are extended to cover all layers in both Float32 and Float64
  * Compatibility with Julia v0.3.3 and v0.4 nightly build
* Documentation
  * Complete User's Guide
  * Tutorial on image classification with pre-trained imagenet model