Cleaned few more functions ...
Merge pull request #95 from rupnikj/TStr

T str
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
Merge branch 'TStr' of https://github.com/qminer/qminer into TStr

Conflicts:
	src/glib/base/dt.h
Merge pull request #101 from rupnikj/TStr

T str
string comparator
Merge branch 'TStr' of https://github.com/rupnikj/qminer into TStr
fix