Merge branch 'TStr' of https://github.com/qminer/qminer into TStr
Merge pull request #129 from lstopar/TStr

T str
Merge pull request #130 from rupnikj/TStr

fix
test
Merge branch 'TStr' of https://github.com/lstopar/qminer into TStr
fixed IsUInt
test
Merge branch 'TStr' of https://github.com/qminer/qminer into TStr
some more tests and fixes
Merge pull request #131 from lstopar/TStr

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