Move tool_data_table_conf.xml.sample to its usual position.
Add conditional to choose between -n and -v alignment modes.

When specifying both -n and -v options, bowtie considers only the last one.
Moreover:
- show fields for -e, -l and --nomaqround options only for -n alignment
- min value for -e is 1 not 0
- possible values for -v are 0, 1, 2, 3