[PATCH] Alias stream_context_get_default() as stream_context_set_default()

Hey, it has come to my attention that stream_context_get_default() is /grossly/ misnamed, considering that it can be used (and is the only way) to SET default options. It works more like ini_set() in that you pass in the new defaults and it returns the old. With the current name, it is as bad as if we added an optional argument to ini_get() that would also set the value. I know we're already into PHP 5.3 alpha, but this is a simple alias, so I'm hoping you can squeeze it in. If not, I understand, and will leave that decision to the RM :) - Davey