FEAT: releasing intermediate sources of modules and protocols after loading these on boot (to reduce memory use a little bit)

Author: Oldes

src/mezz/sys-load.r

@@ -243,6 +243,7 @@ load-boot-exts: function [
 			'else [export-words mod hdr/exports]
 		]
 	]
+	set 'boot-exts 'done
 	set 'load-boot-exts 'done ; only once
 ]
 

src/mezz/sys-start.r

@@ -86,7 +86,7 @@ start: func [
 
 		foreach [spec body] boot-prot [module spec body]
 		;do bind-lib boot-prot
-		;boot-prot: 'done
+		boot-prot: 'done
 
 		;-- User is requesting usage info:
 		if flags/help [lib/usage quiet: true]