add google analytics link
add rack middleware and rmagick
add rake task
add gitignore
add bot sample
add meta-tag for bot
ogp test
test 2
try prerender.io
back later
eager load
add tweet button
tweet button fix
Revert "back later"

This reverts commit 8fcb8c5957897f1fe6b0eb6034bda1dd670b1b54.
Revert "test 2"

This reverts commit 5b6b38e3df5b8c8377ee00f4bf15919fb2fb8cf8.
add tweet button at photo#show
add execjs
execjs test
for linux
add test contrller