Updated to the latest version of qm.
Merge https://github.com/qminer/qminer
Removed xml2js function since it does not work - assumes DOM object as input and there is no easy way of adding that functionality.
Changes in JavaScript:
- `recordSet.map` now creates and returns a new array from returns of callback 
- `recordSet.each` calls callback on each element and returns recordSet (function of `map` before the change)
Merge pull request #25 from rupnikj/master

node module compatibility
Merge pull request #26 from cfortuna/master

Removed unusable code.
Merge pull request #27 from blazf/master

Changes in JavaScript API
time series plots
Merge branch 'master' of github.com:qminer/qminer
doc