Implemente Delete feature

modified:   app.yaml
modified:   blog/assets/css/main.css
modified:   blog/assets/css/main.sass
modified:   blog/templates/base.html
new file:   blog/templates/delete.html
modified:   blog/templates/details.html
modified:   blog/templates/edit.html
modified:   blog/urls.py
modified:   blog/views.py
new file:   index.yaml
Fixes order of elements from Archive

modified:   app.yaml
modified:   blog/assets/css/main.css
modified:   blog/assets/css/main.sass
modified:   blog/templates/base.html