Added .gitignore.

.gitignore

@@ -0,0 +1,16 @@
+# First of all, make sure those pesky SVN folders don't end up on git
+.svn
+
+# Next, ignore all untracked files...
+/*
+
+# ...except the following folders and files in them
+!/data
+!/lua
+!/materials
+!/models
+!/settings
+!/sound
+
+# If you need more folders at the root level, don't hesitate to add them
+# If you need a new file at the root level, just use "git add -f <filename>"