Changing Sensitive to Susceptible in Outputs

[emarinier]

Address #164.

Also note this change (sensitive to susceptible in the help text), which I thought was appropriate, but may be wrong:

        report_group.add_argument('--exclude-negatives', action='store_true', dest='exclude_negatives',
                                  help='Exclude negative results (those susceptible to antimicrobials) [False].',

[apetkau]

This all looks great to me, including the help text change.

Could you add something in CHANGELOG.md about this?

[emarinier]

This all looks great to me, including the help text change.

Could you add something in CHANGELOG.md about this?

Updated

[apetkau]

This looks great. Thanks so much.