add pkg-desc' and pkg-authors' to each package

This information will be used to construct a catalog from the
package directories.

original commit: 057bfc2ea1a24e85ece2d5f85da30076643ea598

pkgs/compatibility-pkgs/compatibility-doc/info.rkt

@@ -8,3 +8,7 @@
 	       "compiler-lib"
                "gui-lib"
                "racket-doc"))
+
+(define pkg-desc "documentation part of \"compatibility\"")
+
+(define pkg-authors '(eli mflatt robby samth))

pkgs/compatibility-pkgs/compatibility-lib/info.rkt

@@ -3,3 +3,7 @@
 (define deps '("base" 
                "net-lib"
                "sandbox-lib"))
+
+(define pkg-desc "implementation (no documentation) part of \"compatibility\"")
+
+(define pkg-authors '(eli mflatt robby samth))

pkgs/compatibility-pkgs/compatibility/info.rkt

@@ -4,3 +4,7 @@
 
 (define deps '("compatibility-lib" "compatibility-doc"))
 (define implies '("compatibility-lib" "compatibility-doc"))
+
+(define pkg-desc "Libraries that implement legacy interfaces")
+
+(define pkg-authors '(eli mflatt robby samth))