Update dependencies
Declare using sinatra-assetpack
Separate inlined JavaScript code as a file
Pack JavaScript resources
Pack CSS resources
Redirect resources referred from packed assets
Add a missing file into the manifest
Declare using uglifier
Use uglifier to minify JS files without errors
Tweak HTTP headers to cache packed assets
Remove a nonessential file from the manifest
Remove a deprecated redirection
Avoid conversion errors while packing assets
Add a task to build assets
Pack assets at deployment
Merge branch 'use-asset-pipeline'

Close gh-100.