New feature: require_glob() (similar to require() but supports globs) (#804)

* Initial implementation of findFiles/globe/glob

* Fixed path, some small improvements

* filepath.Dir() calls Clean() automatically anyway

* Relative path support (like require()), renamed func

* Check file ext prefix, further comments, var renaming

* Updated static.go after merge

* Added doc for glob()

* Tiny adjustment of description of glob()

* Updated docs for possible pattern

* Reworked glob, added public-facing require_glob()

* Updated docs with examples

* Updated static.go

* go generate

pkg/js/helpers.js

@@ -887,3 +887,15 @@ function DKIM(arr) {
         R.push(arr.slice(i, i + chunkSize));
     return R;
 }
+
+// Function wrapper for glob() for recursively loading files.
+// As the main function (in Go) is in our control anyway, all the values here are already sanity-checked.
+// Note: glob() is only an internal undocumented helper function. So use it on your own risk.
+function require_glob() {
+    arguments[2] = "js"; // force to only include .js files.
+    var files = glob.apply(null, arguments);
+    for (i = 0; i < files.length; i++) {
+        require(files[i]);
+    }
+    return files
+}