Use less specific version of coveralls.
Revert "Work around for JRuby"

This reverts commit 6596fedbe9007345fea1e604a09cee4e512f9d86.
Ensure multiline arg location matching works in JRuby
Use `Set` for locations.

Get's rid of the strange module as an abstract class pattern.

Hat-tip to @jdks
Fix a couple of bugs needed for
https://github.com/cucumber/cucumber/pull/590
Fix #37

Look mum, no tests! =:O
Maintain the backtrace when we add duration to Pending exception
NameFilter added
debug output removed
Add LocationFilter from front-end

And move all filters into a single file.
Fix build
Match location of empty scenarios

Ref (cucumber/cucumber#601)
removed #accept
commented and tests still passing
removed untested code
removed data_table untested code
removed scenario untested code
removed feature untested code
removed empty_background untested code
removed doc_string untested code