Merge pull request #52 from blazf/master

Updates to feature space, fs.js and some bug fixes.
visualization updated
google annotated time line
fixed some warning messages
cleaned up warnings
google annotated line chart cleaning up
Merge pull request #53 from rupnikj/master

warnings cleanup, visualizations
Bug fix in cross-validation
Merge branch 'master' of github.com:qminer/qminer