download file
Merge branch 'develop' into feature-2.0
add download function
Clear code
Work in progress
Work in progress
Rename main.py into app.py
work in progress
Work in progress
Global rework in code
some fix
Work in progress
new style, responding
work in progress
Rework main template and css
Add valve copyright
Autorizing
Pattern background
Start page
start-page, remove info