Countable error fixed in RadHierarchyLinkController

Fix countable error

On PHP 7.2 an error is triggered when trying to count a non array variable.

Fix annoying 'error' message in forms

Fixed annoying 'error' message when viewing form without posting changes.

Increased flexibility on storing data

Added new event EVENT_BEFORE_CRUD_VALIDATION which fires just before the create/update function runs. Added public function saveFormModel() to allow extending/overwriting how form data is loaded, validated and stored.

Fix for primary key

Revert back to using textual hardcoded setting of id.

Compatibility with Yii2 2.0.14

Made code compatible with Yii2 2.0.14 release and removed abandoned functionality. Implemented translations.

Class rename

Make main class names consistent with each other. Start adding tests. Many fixes and enhancements (see change log).

Control hierarchy get parameters

Public parameters $grid_hierarchy_get_param and $grid_hierarchy_reset_get_param to control get parameters for settings/resetting hierarchies.

'Full Page' link option on modal view.

Implemented an option to show 'Full Page' link icon on modal title of entity 'view'. Clicking this button opens up the entity view full page.

Only apply base filters if provided.

2.5.1

Only add base where filters if provided.

Base filters separate from user filters

Base filters are now applied separate and direct to the dataProvider search query. This separates them from the user filters and prevents interference.