Add the value (nameCol) in a given BED file to the FASTA header.
bugfix and one test fix
Update hg17 test case for extract_genomic_dna.xml tor reflect recent changes.

Cannot delete or modify previous output file - it is used as input for another tool. Use assertion testing to weaken test case. As this tool is migrated to the tool shed the hg17 test cases should probably be eliminated completely.
Rev slightly the tool version of extract_genomic_dna.xml since output is slightly different.

Update tool help to reflect new output format.
Merge pull request #239 changes into default.