Methode for saving the scores changed

The scores are now saved in separate tables. New functions are added to enter
and retrieve the different scores.
Error correction due to previous changes
Flask functions added to set the form scores

minor error correction aswell
Minor change due to a possible type conflict
PEP8 indentaion & whitespace on main.py

No logic changes. Only whitespace fixups.
PEP8 indentation and whitespace on core.py

No logic changes. Only whitespace!
Replaced string concatenation with format string.
Removed unused import.
PEP8: Tables properly indented, newlines added.
PEP8 indentation
PEP8 line length fixed.
Better mobile styling
Removed dead code.
Removed indexed attribute access with a namedtuple.
Changing DIV class on succ. remote callback.
Better color hover states on the station page.