update Gems
deleted attr_accessible
deleted 'whiny_nils'
updated environments/*rb for rails4
be validated only one line
used HTTP verbs
deleted unnecessory code
refactoring
Merge branch 'master' of github.com:nakajijapan/frustrationme_app into feature/update-rails4

Conflicts:
	Gemfile
	Gemfile.lock
	config/routes.rb
bundle install
Merge branch 'master' of github.com:nakajijapan/frustrationme_app into feature/update-rails4
Merge branch 'master' of github.com:nakajijapan/frustrationme_app into feature/update-rails4
DEPRECATION WARNING: Calling #find(:first) is deprecated.
changed HTTP method
added strong parameters
set config.secret_key_base
Merge pull request #28 from nakajijapan/feature/update-rails4

Update Rails4