feature/global_stats/master

[ji2myji2my]

Enhancement:

• [x] #160
• [x] missing changing gif annimation ranked for middle rank (Resolved on other branch)
• [x] render 404 for unvalid callback url
• [x] populate the views of dashboard by the name of concerning User

[ji2myji2my]

render 404 for unvalid callback url

@ji2myji2my