Release version 0.1
Create route to upload avatar
Add formidable modules
Implement callback to upload the avatar to server
Modify route for uploading images

So each images is associated with a user
Create form to upload images
Add user's uploaded files to gitignore
Add route to test file upload
Add upload file functionality in the controller
Create a Jade template for file uploading
Add avatar url to user model
Save avatar url to user's database
Implement mechanism to upload avatar
Add avatar url to user database
Modify controller to update user's avatar url after uploading
Update .gitignore
Restrain avatar's width to 100px
Add avatar to main page
Add avatar uploading functionality