Can list files in a folder without need to filter by file extension.
Added API to feature space for reading dimensionality of individual feature extractors. Added first attempt at PU learning to analytics.
several node each functions added
linux fix
linux fix2
Added new date feature extractor. Multinomial and BagOfWords extractors can pull in multiple fields in one extractor.
kmeans fix
Merge branch 'master' of github.com:qminer/qminer
windows build fix
kmeans api change
added correlation to linalg
Merge branch 'master' of https://github.com/qminer/qminer
Merge branch 'master' of github.com:qminer/qminer

Conflicts:
	src/glib/mine/ftrgen.cpp
	src/glib/mine/ftrgen.h
	src/qminer/qminer_ftr.cpp
	src/qminer/qminer_js.cpp
	src/qminer/qminer_js.h
Merge branch 'master' of github.com:qminer/qminer

Conflicts:
	src/glib/mine/ftrgen.cpp
	src/glib/mine/ftrgen.h
	src/qminer/qminer_ftr.cpp
	src/qminer/qminer_js.cpp
	src/qminer/qminer_js.h
Merge branch 'master' of github.com:qminer/qminer
Merge pull request #63 from lrei/master

 	added correlation to linalg
store.getColumn(fieldName), store.cell(recId, fieldName)
string vector, vector serialization (binary, matlab), graph neighbor accessors

store.cell(recId, fieldName) is more efficient than store[recId].fieldName
attempt to fix gcc build problem: error: incomplete type ‘TQm::TJsFIn’ used in nested name specifier
attempt to fix gcc build problem: error: incomplete type ‘TQm::TJsFIn’ used in nested name specifier
attempt to fix gcc build problem: error: incomplete type ‘TQm::TJsFIn’ used in nested name specifier