[css2] Made initial value of 'min-width' UA-dependent instead of 0.

Added 'none' as value to 'max-width' and 'max-height' and made it the
intitial value.

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401543

Author: bert-github

css2/properties/properties.db

@@ -62,14 +62,16 @@ non-replaced inline elements, table rows, and row groups;; no;; refer to width o
 non-replaced inline elements, table columns, and column groups;;
 no;; see prose ;; visual */
 
-/* min-width;;  <length> | <percentage> | inherit;; 0;; *;; no;; refer to
+/* min-width;;  <length> | <percentage> | inherit;; UA dependent;;
+all elements except non-replaced inline elements;; no;; refer to
 width of containing block ;; visual  */
-/* max-width;;  <length> | <percentage> | inherit;; 100%;; *;; no;; refer to
+/* max-width;;  <length> | <percentage> | none | inherit;; none;;
+all elements except non-replaced inline elements;; no;; refer to
 width of containing block ;; visual  */
 min-height: <length> | <percentage>
 /* min-height;;  <length> | <percentage> | inherit;; 0;; *;; no;; refer to
 height of containing block ;; visual  */
-/* max-height;;  <length> | <percentage> | inherit;; 100%;; *;; no;; refer to
+/* max-height;;  <length> | <percentage> | none | inherit;; none;; *;; no;; refer to
 height of containing block ;; visual  */
 
 /* line-height;; normal | <number> | <length> | <percentage> | inherit;; normal;;