Merge pull request #70 from swilli/master

Improved TransferlegSimpleSelector
Modification of the levels (ESTEC Open Day) and html clean up ...
Merge branch 'master' of https://github.com/esa/jupiter_tour
Scoring system mission3 and level refinement
Merge branch 'master' of https://github.com/esa/jupiter_tour
small modification
small graphic change
Score in mission 3 is now rounded up to two numbers after the decimal point.
Removed value field from transferlegsimpleselector