Adds the ability for child nodes to be an array of nodes.

Prior, something like:

    l.ul([l.li(null, 'First element'), liItems.map(item => l.li(null, item))])

would not be possible. The programmer's intent is clear, but lmth did not
support it without needing to concat the first li element and the array of lis
manually.  Now, something like the above example works automatically.

This is a major change.

lib/index.js

@@ -30,7 +30,10 @@ function Node(name, isVoid, id, class_, style, listeners, attributes, content, c
 	this.listeners  = listeners;
 	this.attributes = attributes;
 	this.content    = content;
-	this.children   = children;
+	// Merge child nodes with arrays of child nodes.
+	this.children   = children.reduce(function concatChild(children_, child) {
+		return children_.concat(child);
+	}, []);
 
 	return this;
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "lmth",
-  "version": "6.3.0",
+  "version": "7.0.0",
   "description": "A \"type-safe\" HTML DSL for JavaScript environments.",
   "main": "lib/index.js",
   "scripts": {