Fixes bug in #30
ended for loop inside <form> => every upload changed the same file
changed the interface
added margin to have the content clearly away from the menu
changed the id of the menu to correspondend better with its current location
Fixed rollback confirmation when needed
When going from a stand with height < 2.1 to height > 2.1, it should be confirmed again as locations with height > 2.1 are limited
Give People with the biggest stand the flexibility we promised
Remarks None to empty string
changed the hard-coded formula id's in order to corresonded with the database
added contact page