Defined new REQUIRE_ROOT_ACCESS value to allow build of certain definitions as root user only.

Signed-off-by: Daniel (dmilith) Dettlaff <dmilith@verknowsys.com>
Fixed an issue with no echo after retry in case of SHA mismatch on source file.

Signed-off-by: Daniel (dmilith) Dettlaff <dmilith@verknowsys.com>
Defined use of REQUIRE_ROOT_ACCESS value in Courier* and Openafs definitions.

Signed-off-by: Daniel (dmilith) Dettlaff <dmilith@verknowsys.com>