Fix whitespace
Replace Float#round_to in flog task with Float#round from backports

* The Float#round method is available in ruby 1.9, backports
  adds a version that works in 1.8. Besides being made redundant
  the Float#round_to method here is buggy and not as well tested
  as the version from backports.
Update gem dependencies to match veritas Gemfile.devtools
Update reek and roodi thresholds
Update travis configuration to match veritas
Remove TODO notes that no longer apply
Update gem dependencies in gemspec
Update gemspec to match current conventions in other dm gems
Refactor to use Pathname for paths instead of String objects