tests
tests
tests
Merge pull request #127 from lstopar/TStr

T str
Merge branch 'TStr' of https://github.com/qminer/qminer into TStr
tests, trunc fix (getsubstr now thros an exception)
getsubstr usage fixed (IOB exceptions)
Merge pull request #128 from rupnikj/TStr

T str
getsubstr temporarary IAssert
tests cleanup
\Merge branch 'TStr' of https://github.com/rupnikj/qminer into TStr
fixed LeftOf