Changed form creation to use filters
Changed various things around
Added filters
Merge remote-tracking branch 'origin/master' into dev
Added filter for admin tabs - still needs some work
Huge overhaul to register settings to allow users to hook in and create their own settings with some filters
Merge remote-tracking branch 'origin/master' into dev
Added an action for admin pages that don't necessarily use settings
Fixed a bug with global settings being passed; Refined filter functions a lot
Added a filter for the submit button on the settings tabs, mostly in case it needs to be removed
Added some comments
Minor code cleanup; Comments:
Changed shortcode  to be global
Moved code for outputting the save button on admin pages; Added filters to display admin tabs titles
Admin help tab title update.
Admin settings description updates.
Added new setting callback
Merge remote-tracking branch 'origin/dev' into dev
Updated section callback
Fixed bug where button was still showing with no amount entered