Cleanup: make sure javascript/external/ directory is ignored by git repository

THe javascript/external/ directory will be for storing 3rd-party (aka: external) javascript.

I am currently investigating different javascript libraries to include, such as:
- fullcalendar
- jquery_mobile

diff --git a/.gitignore b/.gitignore
new file mode 100644 (file)
index 0000000..d6442be
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+# ignore 3rd-part, aka: external, javascript files.
+javascript/external/