Issue #19: Final percent is the floor of the coverage
Issue #19: Final percent is the floor of the coverage

As described by hbetts, we need to use Math.floor so that a total
coverage of 100% is only achieved iff the total coverage is 100%.

*	modified:   lib/istanbulReportParser.js
- Removing the toFixed as the percent is not proper.
- Using Math.floor as described

intuit/istanbul-cobertura-badger,marcellodesales/istanbul-cobertura-badger