Merge pull request #108 from kendasareking/master

Generalised controller tuning function
Added file to run all the other files to check for errors
Merge remote-tracking branch 'upstream/master'
Made fixes to utils.py to conform to PEP8
Merge remote-tracking branch 'upstream/master'
Merge pull request #110 from pdawsonsa/master

Corrections to utils.py to comply with PEP8.
Merge pull request #109 from kendasareking/master

Plot of the RGA number for a user specified pairing
Build table of results in runall.py
Merge remote-tracking branch 'upstream/master'
Plots for the condition number, max and min singular values, and the RGA number