* Make TI_Form::select_options() be a static, will help accessing this fn from outside.
* Renamed Form type markup to html to get more rememberable.
* Fixed bug that allow pushing values from markup that have name same lile a form register element.
* create_nonce() now have option to regenerate the key.
* TI_Form::handle() now prevent from multiple form submission after successful form submit.
* TI_Form added missing element type 'textarea'.
* TI_Form:: is now public.
* Major bugfixes over TI_Database and TI_Form.
Fixed TI_Form behaviours when submission.
* Removed @access hint from method and property comments, no point of them.
* Added hook alter.form_element_value.
* Added new form element data flag '#skip_value_populate'