Merge pull request #56 from blazf/master

Cleaning + simple parsing of lined-json files
Merge pull request #57 from blazf/master

Updated vesion count to 0.8.0
node test
linux build fix
moved utilities and hashmap below fs, fin, fout
api change: all .save(fout) methods return fout instead of self - useful for chaining, for example: mat.save(fs.openWrite('mat.bin')).close(). moved snap and utilities below fs, fin, fout. added graph save/load.
graph load fix
Merge pull request #58 from rupnikj/master

minor api change: all save methods return fout instead of self. nodejs code, graph binary save/load
N-gram generation. Hashing changes: feature space columns now correspond to the hash. New hashing function for the hash trick (murmur3). Comprehensive testing for text featureSpace added.
Merge branch 'master' of https://github.com/qminer/qminer
Merge pull request #59 from lrei/master

N-gram generation and Hashing changes.
Reverted BigStringPool to DJB hash - change was accidental
Merge pull request #60 from lrei/master

Reverted BigStringPool to DJB hash - change was accidental
text ftr extractor can now keep hash table in memory. matching test added.
removed eval from ftrspace test
Merge pull request #62 from lrei/master

text ftr extractor can now keep hash table in memory.
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