||Initial commit for update 4.2.8
This commit includes many update such like:
1. Capability to install the modules and auto generate the menus and permission (sets from module properties) from module package;
2. Capability to remove junk menus and permission when the related module is uninstalled;
3. Verification during uninstall the active theme, that will throw a notification;
4. Refine the blog module;
5. Restructure the coding style;
6. Correcting the PostgreSQL syntax support.