Remove default tests.py files

These tests.py files are simply demo files
They are not adapted for this project
Until tests are properly implemented these do not need to exist
Remove empty models.py
PEP8 fixes for some development scripts
Move map controls styles to separate css
Add altitude plot style
Truncate long station names
Put entire sidebar in one floating div

Fixes #33
Fix selecting station on map
Sidebar in one floating div for stations pages