Split mandatory and optional keys.

member-parser.scm

@@ -45,7 +45,9 @@
 	 configuration)
 
  ;; Pass 2: known keys and multikeys
- (define member-schema-known-keys '(nick mail phone name born joined destroyed))
+ (define mandatory-keys '(nick name mail phone))
+ (define optional-keys '(born joined destroyed))
+ (define member-schema-known-keys (append mandatory-keys optional-keys))
  (define member-schema-known-multikeys '(card desfire credit studentstart studentstop suspendstart suspendstop))
 
  ;; Pass 3: Interpreter passes