RGA subplot function and some pep8

Added a function to the existing RGA file that plots a subplot for each
element of the RGA matrix. Also changed some stuff in the file to be
pep8 compliant.
Merge pull request #58 from kyliefenner/master

RGA subplot function and pep8
Completed more outputs for example 2.5
Completed all outputs for example 3.3
Merge pull request #59 from Fugacity59/master

Example 2.5 and 3.3
Reworked Example 2.3

Reworked Example 2.3 for transfer functions of any order
Merge pull request #60 from clifford-oliphant/master

Reworked Example 2.3
RGA subplot function and some pep8

Added a function to the existing RGA file that plots a subplot for each
element of the RGA matrix. Also changed some stuff in the file to be
pep8 compliant.
Reworked Example 2.3

Reworked Example 2.3 for transfer functions of any order
Merge pull request #4 from alchemyst/master

Updating
Calculation of P, N and M matrices

Added a module to calculate P, N and M matrices for the six forms of
unstructured uncertainty in MIMO systems.
Merge pull request #61 from SimonStreicher/master

Calculation of P, N and M matrices for SISO
Included scaled singular value calculation
Refactor to remove duplicated code
Merge branch 'master' of https://github.com/alchemyst/Skogestad-Python
Merge remote-tracking branch 'upstream/master'
Created a method called zero

Zero calculates the zeros of a state space transfer function using the
modified eigenvalue method. Use my other methods to get the directions
etc...
Merge pull request #63 from stelmo/master

Fixed the "sigh" commit error...
Merge remote-tracking branch 'upstream/master'
Added State Space zero function