Updated: code coverage exclusions
Updated: log settings
Updated: readability
Updated: conditionally add admin_menu and admin_init action callbacks
Added: conditional for post_updated_messages() callback
Added: error triggered when submenu page cannot be added
Implemented: _render_input_textarea()
Updated: comments
Added: testStubModelSettings
Updated: required files
Updated: setUp()
Implemented: testAdminInitActionExists()
Implemented: testAdminMenuActionExists()
Implemented: testRegisterOptions()
Implemented: testAddMenuPages()
Implemented: testAddSettingsSections()
Implemented: testAddSettingsFields()
Implemented: testRenderTextarea()
Implemented: testReturnTextarea()
Added: settings_model