use Pmodules extended commands in modulefiles (fixing issue #3)

Tools/Eclipse/modulefile

@@ -1,12 +1,12 @@
 #%Module1.0
 
-set whatis	"C/C++ IDE"
-set url		"http://eclipse.org/home/index.php"
-set license	"Eclipse license"
-set licensefile	"notice.html"
-set maintainer	"Achim Gsell <achim.gsell@psi.ch>"
+module-whatis		"C/C++ IDE"
+module-url		"http://eclipse.org/home/index.php"
+module-license		"Eclipse license"
+module-licensefile	"notice.html"
+module-maintainer	"Achim Gsell <achim.gsell@psi.ch>"
 
-set help	"
+module-help		"
 Eclipse is famous for its Java Integrated Development Environment (IDE), but
 its C/C++ IDE and PHP IDE are pretty cool too. You can easily combine
 language support and other features into any of our default packages, and
@@ -14,8 +14,6 @@ the Eclipse Marketplace allows for virtually unlimited customization and
 extension.
 "
 
-source		$env(PSI_LIBMODULES)
-
 if { [uname sysname] == "Darwin" } {
 	set-alias Eclipse "open -n \"$PREFIX/Eclipse.app\""
 }