Add oAuth setup screen for private Github repos; Wrap sslverify in array for github_data wp_remote_get()
Fix translation namespace
Fix delete_transients not running.

delete_transients was hooked to init priority 10, but upgrade.php is initialized on that hook, so the action is added too late to run. Changing delete transients to init priority 11 causes the method to run.
Adjust spacing and use add_query_args
Merge with upstream master
Link to new repo