Sync devtools
Handle Rubinius::AST::NthRef as noop and prep release
Fix release date for 0.2.16
Update devtools
Bump backports dep to ~> 2.7.0
Use inflector from git source to overcome chicken egg
Bump adamantium dep to ~> 0.0.5
Merge branch 'master' into development

Conflicts:
	lib/mutant/mutator/node/noop.rb
Bump version to 0.3.0
Remove -I/--include and -r/--require cli options
Do not freeze fixnum constants
Use attr_reader for object space matcher
Remove cli parser from object space matcher
Use attribute reader instead if ivar access
Remove needless value mutation
Reorganize classifiers

* Classifiers are matcher subclass and delegate to lazy builded matcher
  interfaces
* Solves chicken egg problem between target library load and classifier
  matcher instantiation