Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/alexsomeoddpilot/SimpleTwit/inspections/f8716b90-3da3-4718-bce1-dbb0569d4d2c

Enabled analysis tools:
 - PHP Analyzer
 - PHP PDepend
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer
Merge pull request #1 from alexsomeoddpilot/scrutinizer-patch-1

Scrutinizer Auto-Fixes
Renaming to set up for class
Moving submenu page to class
Moving stf_options_setup into class
Moving more functions into class
Moving stf_edit_twit into class
Pulling rest of functions into class
Requiring and calling class
Fixing naming
Merge branch 'feature/refactoring-options-page' into develop
Merge branch 'master' of https://github.com/alexsomeoddpilot/SimpleTwit into develop