Fix admin controller routing bug

Signed-off-by: JWhy <jwhy@jwhy.de>
Implement image download method

Signed-off-by: JWhy <jwhy@jwhy.de>
Added counting of skipped elements in minecraftitem model

Signed-off-by: JWhy <jwhy@jwhy.de>
Fetch item images from local mirror

Signed-off-by: JWhy <jwhy@jwhy.de>
New image display view for admin panel

Signed-off-by: JWhy <jwhy@jwhy.de>
Markup changes in header view, removed float from app.css

Signed-off-by: JWhy <jwhy@jwhy.de>
Add Bootstrap and JQuery Javascript files to assets folder

Signed-off-by: JWhy <jwhy@jwhy.de>
Include MC 1.6.2 item images in repository

Signed-off-by: JWhy <jwhy@jwhy.de>