add simple middleware support for nico server
Merge pull request #50 from afc163/simple-middleware-for-nico-server

add simple middleware support for nico server
Move mimetypes out of server
Fix syntax
fix callback in nico server
Merge branch 'simple-middleware-for-nico-server'
Merge https://github.com/lepture/nico/pull/51
Merge github.com:lepture/nico
add glob function in sdk