Cleaned few more functions ...
Merge branch 'TStr' of github.com:qminer/qminer into TStr

Conflicts:
	src/glib/base/dt.cpp
	src/glib/base/dt.h
Now it compiles.
Merge branch 'TStr' of github.com:qminer/qminer into TStr
Merge pull request #98 from blazf/TStr

T str