Download Monitor Page Addon 4.3.0

* Fixed: DLM 4.6.0 compatibility
* Changed: Notices priority set to 8.
* Fixed: Fix for PHP 5.6 error "unexpected '::' (T_PAAMAYIM_NEKUDOTAYIM)".
* Added: A "-" to plugin title so it's in line with other DLM plugins
* Fixed: Fatal error when download does not have a file
* Fixed: "download" no longer a button in the download template
* Fixed: Partial fix - shortcode not working on homepage except if permalinks set to plain.

* Changed: License and update checking system
* Changed: Notice display
* Changed: Tabs reconstruction
* Fix: Activation error fix
* Changed: Extensions markup
* Added: [download_list] shortcode
* Added: Download List Block
* Changed: The plugin's css will only load when the shortcode is present.
* Added: Plugin inline notifications
* Fixed: Shortcode atts not relative to search results - partial

Tweak: Changed subcategories filter to dlm_page_addon_get_sub_category_args. If your dlm_page_addon_get_category_args filter should also be applied to the subcategorie block, please also add it to the new dlm_page_addon_get_sub_category_args filter.