export.mayu: TypeError: 'ScoredTable' object has no attribute '__getitem__'

[danielhyduke]

When running pyprophet 0.18.3 with the --export.mayu option, I get the following error:
TypeError: 'ScoredTable' object has no attribute 'getitem'

This appears be due to the following code where indexing is being done on a ScoredTable object instead of the associated DataFrame (ScoredTable.df) in report.py

https://github.com/uweschmitt/pyprophet/blob/master/pyprophet/report.py#L115

mayu_csv = scored_table[scored_table["peak_group_rank"] == 1][interesting_cols]

https://github.com/uweschmitt/pyprophet/blob/master/pyprophet/report.py#L126

mayu_fasta = scored_table[scored_table["peak_group_rank"] == 1]

pyprophet 0.18.3
OpenSwathWorkflow -- Complete workflow to run OpenSWATH
Version: 2.0.0 Sep 9 2015, 13:29:57, Revision: 66a7739
CENTOS 7 64-bit
python 2.7.9