Change port number
Add robots.txt
Merge branch 'master' into test
Sort images of a class
Allow minus sign
Modify message to allow minus and underscore
Add api docs (incomplete)
Fix login varidator
Refactor and add message in upload images page
Reject files that are not images
Merge branch 'master' into test
Merge branch 'test' of github.com:amutake/satsukita-andon.com into test