Classificaio

* Added space between "main buttons" on upper left of main windown and lab logo

* Added "EXIT PYTHON" button to quit Python and ClassificaIO and fixed FATAL error.
* Optimized ClassificaIO for Mac OS X, Linux, and Windows:
* Classifiers parameters font type and alignment have been optimized for all three operating systems
* ClassificaIO style, theme, and colors been optimized for all three operating systems
* Fixed confusion matrix display, data training and testing results
* Buttons are more responsive, with dashed outline or color changes once the button has been clicked
* Scrollbars have been added to all listboxes
* Implemented reseting of all variables once ClassificaIO is closed and re-launched to eliminate interference of information/results from prior sessions

* Changed 'user guide' to 'user manual' in error massage
* Replaced menu bar with 'HOME' and 'HELP' buttons
* Added panels to canvas rather than frame in the ‘Already Trained My Model’ window

* SGD classifier parameter typo fix

* Updated SGD classifier parameters for overlap bug between input variables
* Updated code comments
* Released version available through Zenodo

* Updates for PyPI compatibility
* Loading of application gui updated