Fixed a bug that meta box fields did not get conditioned.
Refactored the code that deals with conditioning and displaying form fields from the definition arrays to support sections arrays to be passed to the rendering class so that the class can refer to the section definition when rendering tables. This helps to implement repeatable sections.
Made the HTML form section tables have own ID attribute.
Made the custom grid field type not show the title column.
Changed the key name 'hidden' to 'reveal' to set hidden elements in the custom sample field type since the 'hidden' key was used by the framework.
Added an example section for repeatable sections.
Commented out the section tab as the implementation will not be done soon.
Applied the changes to the minified version.