Make start.sh work without any arguments.
Fixed some backend issues related to scientists.

* Scientists take time to publish something.
* Determine max number of scientists correctly at start of game.
Interface for scientist progress + various fixes.

* Each scientist sports a progress bar displaying their progress in
  analyzing data. (if this is too clunky or too slow we can take it out,
  but it looks quite nicely for now)
* Progress bars use an angular filter, so no more custom "width: x%"
  functions.