Clarified Node documentation.

Fixed a bug that caused errors when loading documents with YAML
version directives.

dyaml/loader.d

@@ -206,6 +206,11 @@ struct Loader
         /**
          * Load all YAML documents.
          *
+         * This is just a shortcut that iterates over all documents and returns
+         * them all at once. Calling loadAll after iterating over the node or
+         * vice versa will not return any documents, as they have all been parsed
+         * already.
+         *                  
          * Returns: Array of root nodes of all documents in the file/stream.
          *
          * Throws:  YAMLException on a parsing error.

dyaml/parser.d

@@ -351,7 +351,7 @@ final class Parser
                     enforce(YAMLVersion_ is null, 
                             new Error("Duplicate YAML directive", token.startMark));
                     const minor = parts[1].split(".")[0];
-                    enforce(to!int(minor) == 1, 
+                    enforce(minor == "1", 
                             new Error("Incompatible document (version 1.x is required)",
                                       token.startMark));
                     YAMLVersion_ = parts[1];