Expand ZieglerNichols() function to also have the ability to return the Tyreus-Luyben tuning parameters
Merge remote-tracking branch 'upstream/master'
Format the headings in the help file for RGA to be consistent with the rest of the script
Update example to call ControllerTuning instead of the replaced Ziegler Nichols function
A script were all the commonly used plots can be incorporated into
Merge pull request #108 from kendasareking/master

Generalised controller tuning function