Change Gemfile so dependencies are sorted alphabetically
Add encoding lines to ruby source files
Update tasks to match devtools more closely
Remove unnecessary configuration for test files
Change the IceNine::VERSION to be frozen
Update travis config to match other gems more closely
Add TODO notes
Update Hash freezer to freeze the default
Add contribution guidelines
Update badges on README to match other gems
Update copyright date
Upgrade gem dependencies
Fix whitespace
Replace usage of #object_id with #__id__

* The __method__ exists to give an unambiguous object_id, while the
  former may be overridden.
Replace rvmrc with .ruby-gemset
Update flog threshold