Non-prefixed functions in mod/adobeconnect may cause naming conflicts

We reviewed the Adobe Connect module code before installing it in our Moodle code base and found two functions that are not prefixed:

set_username()
get_connect_username()

To prevent any possible naming conflicts, our suggestion is to rename these as aconnect_set_username() and aconnect_get_username() respectively to be consistent with the other functions in locallib.php.

There are also deprecated functions but these are minor compared to the prefixing. I noticed get_context_instance(), error(), and notify().