Add feature for writing to a custom report location
Add options map for creating reporters
Use custom report path in JUnit reporter
Support different output files when specifying multiple reports
Use Array.each_with_index.map for 1.8.7

- Enumerator.with_index was added in 1.9.3
Move bin helper methods into Runner class
Formatting
Merge pull request #43 from mneorr/custom-reporter-file

Add option to specify a custom location for report generation
Update CHANGELOG.md
simplify class structure
Merge pull request #47 from mneorr/kill_runner

simplify class structure