share/TabFile.py: version 0.2.5, implement __nonzero__ built-in for TabDataLine to enable easy test for blank lines.
share/TabFile.py: version 0.2.5, implement __nonzero__ built-in for TabDataLine to enable easy test for blank lines.

fw1121/genomics,fw1121/genomics,fw1121/genomics,fw1121/genomics,fw1121/genomics