* Add option to dynamically pass in 'From' and 'To' - fixed bug when 'From' was greater than 'To' by flipping the two
* Set initial values of 'From' and 'To to "" to allow dynamic overriding them
* use new test-helper add test to package.json
* try to fix travis build with new test helper
* install coveralls globally
* work around travis issue with adding node_modules/.bin in PATH