Added pre_svm check in DA SVM
Added missed include in csv file
Fixed possible nullptr in sparse features
Fixed possible nullptr in dense features
fix for issue #1579
Merge pull request #1585 from gsomix/feature/csvfile

Fix for issue #1579: extra comma when using CSVFile to save DenseFeatures
Use CSVFile instead of AsciiFile in StreamingDenseFeatures_unittest.cc
Fix MLDataHDF5File header when setting unimplemented functions
Fix StreamingAsciiFile: use comma and not space as delimiter
Fix precision expectation of StreamingDenseFeatures_unittest
Add set_delimiter option to StreamingAsciiFile
Travis: speed up compilation time in modular jobs
fix ruby io example
Towards fixing r_modular interface
Fix r_modular CMakeLists.txt
Fix r_modular install target
Add r_modular examples
fix java name generation
Fix installing R examples
Create Meta dir for r_modular when installing
Change r_modular interface examples
load shogun library instead of modshogun
use LibSVMFile for sparse ascii data
attempt to fix R modular examples

don't do feature setting in constructor but separately