changech, changechall, changestr
Merge branch 'TStr' of https://github.com/qminer/qminer into TStr

Conflicts:
	src/glib/base/dt.h
changestrall
Merge branch 'TStr' of https://github.com/qminer/qminer into TStr

Conflicts:
	src/glib/base/dt.h
minor
Merge branch 'TStr' of https://github.com/qminer/qminer into TStr
changestrall todo
Merge pull request #78 from rupnikj/TStr

T str