Fixes issue #49: Faces with a score of zero don't display a label anymore.
Merge pull request #50 from swilli/master

Fixes issue #49: Faces with a score of zero don't display a label anymor...
Update README.md
Update README.md
Fixes issue #52. Universum has now a fixed size and all orbiting bodies are scaled to fit inside the universe.
Forgot to remove an unused member of GameEngine.
 Improved mission1 and mission3 goal function.
Merge pull request #53 from swilli/master

Contains enhancement #52 and mission1 and mission3 scoring improvements.
Enlarging the max time of flight from Venus
Change Level1 parameters
Changed FILE_CACHING_TIME to 1 day.
[Mission 1]: Road to Jupiter. Redefinition of scoring system and planetary parameters
Merge pull request #56 from darioizzo/master

[Mission 1]: Road to Jupiter. Redefinition of scoring system and planeta...
Fixed folder structure bug.
Merge pull request #57 from swilli/master

Fixed SSL key/certificate folder bug
Updated node modules.
Mission 2 redefinition
From ESA branch

Merge branch 'master' of https://github.com/esa/jupiter_tour
Merge pull request #61 from darioizzo/master

Mission 2 redefinition
Safety commit. Current Task: Issue #51