Merge pull request #125 from i-d-e-a-t/study-as-chain

Study as chain
db/seed.rbがサマソニ専用だったのを汎用化した
modified:   db/seeds.rb
Revert "Study as chain"
delete old assets
refresh assets
Merge pull request #161 from i-d-e-a-t/revert-125-study-as-chain

Revert "Study as chain"
Merge pull request #164 from i-d-e-a-t/study-as-chain

Study as chain
add apple-touch-icon image #118
provide apple-touch-icon #118
use rails helper for apple-touch-icon #118
refresh assets #118
Merge pull request #166 from i-d-e-a-t/apple-touch-icon

Apple touch icon
アイキャッチ画像を使わない
グレーのボックスを白に変更
precompile実行
new file:   public/assets/application-9e52c492490d144ad0af871ba0bf7ed7.css
new file:   public/assets/application-9e52c492490d144ad0af871ba0bf7ed7.css.gz
modified:   public/assets/manifest-7592299a8d46bf5bde18af4d24c608ff.json
Merge branch 'master' into modify-seed-for-a-nation

Conflicts:
	public/assets/manifest-7592299a8d46bf5bde18af4d24c608ff.json
Merge pull request #162 from i-d-e-a-t/modify-seed-for-a-nation

db/seed.rbがサマソニ専用だったのを汎用化した
Merge branch 'master' into revival-study-as-chain

Conflicts:
	public/assets/application-11bc2d62c1cf5b17578468dd8713cdb8.js.gz
	public/assets/application-64affee8fc33968eda54be509ff731be.css.gz
	public/assets/application-91b97c6d10576d6fe96ad502117d4f31.css
	public/assets/application-9e52c492490d144ad0af871ba0bf7ed7.css
	public/assets/application-aaae84d294ddecd76ed8c58c63e3ae44.js.gz