Deleted Skeleton App public directory files

Deleted Skeleton Application public directory files
Added RdkBase module

Added RdkBase module
Added RdkBlog module

Added RdkBlog module
Added RdkGithub module

Added RdkGithub module
Added global.php config file
Updated composer json file
Added ZendDeveloperTools config file
Enable all modules
Deleted default Skeleton Application module