Merge pull request #53 from rupnikj/master

warnings cleanup, visualizations
Bug fix in cross-validation
Merge branch 'master' of github.com:qminer/qminer
Fixed persions and separators in examples so they run on Linux/Mac
Simple parsing of files with json-lines.
Removed some old deprecated stuff.
Merge pull request #54 from rupnikj/master

store.clear and snap minor updates
Merge branch 'master' of github.com:qminer/qminer

Conflicts:
	examples/graphs/src/graphs.js
Merge pull request #56 from blazf/master

Cleaning + simple parsing of lined-json files
Updated vesion count to 0.8.0
Merge pull request #57 from blazf/master

Updated vesion count to 0.8.0