Redundant (and broken) code in 'Gemfile'
Common Readme improvements [ci skip]

Conflicts:
	README.md
Tests improvements
Readme improvements [ci skip]
Rubocop corrections
Integrate SimpleCov
Remove Cell::Deprecations
Change Rails versions we supports
Rename OptionsConstructor's file
RESTORE Remove failed test and Coverage
Small fix
Separate Cells::Rails module
Change directory structure
RESTORE Remove ViewModel
Small fix
Rename classes and modules
Remove Rake tasks
Dummy application
Remove Label from tests
Remove changelog