changing the version detection code to work with 5.3 prerelease

parser/parse-bytecode-5.2.1.rkt

@@ -7,7 +7,7 @@
 
 (version-case
   [(and (version<= "5.2.0.900" (version))
-        (version< (version) "5.2.901"))
+        (version< (version) "5.2.900"))
 
    ;; Parsing Racket 5.1.2 bytecode structures into our own structures.
    (require "path-rewriter.rkt"

parser/parse-bytecode-5.3.rkt

@@ -6,7 +6,7 @@
 
 
 (version-case
-  [(version<= "5.2.901" (version))
+  [(version<= "5.2.900" (version))
 
    ;; Parsing Racket 5.3 bytecode structures into our own structures.
    (require "path-rewriter.rkt"

parser/parse-bytecode.rkt

@@ -28,13 +28,13 @@
      (provide (except-out (all-from-out "parse-bytecode-5.2.rkt")
                           parse-bytecode)))]
   [(and (version<= "5.2.0.900" (version))
-        (version< (version) "5.2.901"))
+        (version< (version) "5.2.900"))
    (begin
      (log-debug "Using 5.2.1 bytecode parser")
      (require "parse-bytecode-5.2.1.rkt")
      (provide (except-out (all-from-out "parse-bytecode-5.2.1.rkt")
                           parse-bytecode)))]
-  [(and (version<= "5.2.901" (version))
+  [(and (version<= "5.2.900" (version))
         ;;(version< (version) "5.3")
         )
    (begin