Added a couple of examples for Random Fourier Features
Merge pull request #1667 from gsomix/feature/protobuf

Add string list support for ProtobufFile
Merge pull request #1666 from van51/feature/modular

Added a couple of examples for Random Fourier Features
Add neighbourhood graphs to LMNN notebook
fix typo in doc
Update data file paths in LMNN notebook
Merge pull request #1668 from iglesias/feature/lmnn

Add neighbourhood graphs to LMNN notebook
add sparse matrix support for Protobuf file format