Describe the bug
The README tells us ES needs at least 65MB free disk space, Steam says it's 75 MB. Seeing how the releases as well as the repository are already bordering on 100MB, this cannot be accurate.

Except when selecting a waypoint, the science arrow was never there on the navigation screen for the whole session, we had to tell the bearing and mark values in order to navigate.

In which conditions is this arrow supposed to appear?

There could be new starting positions for realms. Ancient could start in middle of the galaxy and rest of the realms from outside of the galaxy.

when #275 and #246 are done, a getWeaponSlotInfo() method should be implemented for SpacecraftClasses and using its output the info (in the database and when buying a new ship) should look like this:

Weaponry:
Gun ports: 4 small
Turret ports: 4 small
Cannon ports: 6 large
Missile ports: 4 medium, 2 small
Torpedo ports: 2 small

In strict PHP, you can only assign variables by reference. Things
that are not variables include function calls and constants.

So we begin the herculean task of removing all unneeded references.
Here are some important details about references:

• Objects are always passed/copied by reference (in the c++ sense).
  We can pass an object without the & and still access/modify
  its interna

I just had arrow (151) pull 1 unit of iron ore from sport (52). The event took place correctly, However, the events table at http://advolition.com/spacecraft/151 only shows the increment event where the material was added to arrow's cargo hold. It doesn't show the decrement event in which the material was removed from sports cargo bay. Nor does the events table list the exchange of credits. Th