Add gendered name prefixes, see issue #63
Upgrade some test packages, simplify mocha-phantomjs usage a bit, fix a small lint issue
Change default age range to be  rather than , add  range, cap at 100 rather than 120 because those ages are silly and exceedingly rare
Bump version number, update contributor list
Bump version number
Ensure gender option from name passed along to prefix, if provided
Clean up currency() a bit, ensure unique() can take a custom comparator function
Bump version number