Replaced NameAttribute and RequiredAttribute with CommandLineParameterAttribute.
Fixed CommandLineParser namespace.
Added time elapsed to build output.
Added /rebuild option back and a /clean option.
Changed all the command line parameters to lowercase.
Removed ContentProject.cs.
Made the content list private.
Added some TODOs.
Made some of the lists readonly.
Moved most the console output to Main().
Added response/command file support.