New executable scripts

[jan.gerrit.harms]

Hi everyone, 

My name is Jan-Gerrit Harms. I currently following a Master prorgam in Bio-Mechanical Design at TU Delft in the Netherlands and work part time for the Kitepower group at Aerospace faculty of TU Delft. 

My bachelor was in Aerospace Engineering but I am very interested in software engineering and renewable energies. 

So much for the introduction.

I will be working a little more on this project in the future and have just implemented some changes concerning the executable scripts. 

There are basically two modes in which FreeKiteSim can be used at this point: 

1. As a player for log files that contain recorded flight data.

2. As simulation with a kite model 

The two different version used to be started by manually executing python scrpits and making changes in Settings.py which has now been automated.

There are two executables, namely kitesim.sh and kiteplayer.sh.

kitesim.sh used to be the executable for the log file player but to forecome confusion this now executes the actual simulation with kiteplayer.py running the log file reader.

Furthermore a short tutorial of pyzmq was added for the most basic case. A second tutorial with an example of protobuffer messages will follow. 

Also I am working on an installation program.

That's it for now.

Best regards,

Jan