pidgin/pidgin

c792b39da167
Port the secretservice keyring to PurpleCredentialProvider

Port the secret service keyring to PurpleCredentialProvider

Testing Done:
Made sure passwords were created and deleted in seahorse.

Reviewed at https://reviews.imfreedom.org/r/401/
libpurple/data/purple-url-handler.desktop.in
libpurple/protocols/null/nullprpl.c
pidgin/data/im.pidgin.Pidgin.desktop.in
sub/libpurple/data/purple-url-handler.desktop.in
sub/libpurple/protocols/null/nullprpl.c
sub/pidgin/data/im.pidgin.Pidgin.desktop.in