Updated comments
Merge branch 'master' of github.com:qminer/qminer
Merge branch 'master' of https://github.com/rupnikj/qminer
Some small reporting fixes in qminer_js. Bugfix in parsing URLs.
Merge branch 'master' of github.com:qminer/qminer
Merge branch 'master' of https://github.com/rupnikj/qminer
Added .filter method to feature space, which can filter sparse vector to elements from only one feature extractor.
Added .diff method to time, which can tell the difference between two TJsTm elements.
Add la.standardize function in linalg.js
Add R square evaluation measure to evaluation.js.
Minor changes in evaluation.js functions (extra input parameters - previous version still works).
Bugfix in evaluation.js
Add optional parameter ref_num to evaluation functions.
Recursive linear regression - NaN checking
ignore
fixed THeap constructor in gbase.h - invalid argument sequence
Added fs.loadJson to fs, which loads string and parses it into JSON object. Fixed notify string formating in SVM.
made default svd more robust
added qr decomposition
linux bugfix: using MIN(a,b) instead of windows specific min(a,b)
Added warnings and exceptions to:
 - creating store with name that is already taken
 - parsing arguments in JS to C++ types such as TJsRec, TJsRecSet, ...
Merge branch 'master' of https://github.com/qminer/qminer
sparse matrix sign function added