Merge pull request #14 from kaznum/rails4

Support Strong Parameter
Fix favicon url
Merge pull request #15 from kaznum/fix_favicon

Fix favicon
Merge the output of `rake rails:update'
Change the copyright to ESTCOSMO
Add missing a period
Merge pull request #16 from kaznum/rake_rails_update

Merge the output of `rake rails:update'
Merge pull request #17 from kaznum/fix_copyright

Change copyright