Fixes to svmlight reader
Merge branch 'master' of https://github.com/aatapa/RLScore
Small update to reader
Merge branch 'master' of https://github.com/aatapa/RLScore

Conflicts:
	rlscore/reader.py
Merge branch 'master' of https://github.com/aatapa/RLScore
Reimplemented example code generation.

Removed the core modules and remains of cfg file support.

First versions of cross-validation and grid search methods implemented, removed old model selection mechanisms.

Removed abstract kernel, since it is not actually used for anything.