Merge pull request #6096 from mnoskova:mn/SVMSGD_to_opencv3_0

doc/opencv.bib

@@ -874,3 +874,11 @@
   year={2007},
   organization={IEEE}
 }
+@incollection{bottou2010large,
+  title={Large-scale machine learning with stochastic gradient descent},
+  author={Bottou, L{\'e}on},
+  booktitle={Proceedings of COMPSTAT'2010},
+  pages={177--186},
+  year={2010},
+  publisher={Springer}
+}