Updates, Improvements, and Fixes

* Moved scripts / runner to separate package
    allows future replacement with PS Plugin.
* Fixed issues with Refresh and removed "layer" function.
* Added github documentation via godocdown.
* Reduced number of calls to Panic.
* Updated Tests
* Updated documentation.
* Fixed warnings.
* .gitignore now ignores .test and .out files.

runner/scripts/moveLayer.jsx

@@ -0,0 +1,11 @@
+#include lib.js
+var stdout = newFile(arguments[0]);
+var lyr = eval(arguments[1]);
+lyr.translate((Number)(arguments[2]), (Number)(arguments[3]));
+if (lyr.typename == 'LayerSet') {
+	lyr.merge()
+	lyr=eval(arguments[4])
+	Undo();
+}
+stdout.writeln('{' + bounds(lyr) + '}')
+stdout.close();