Moved login attempt handler code to profanity module

src/profanity.h

@@ -25,6 +25,9 @@
 
 void profanity_init(const int disable_tls, char *log_level);
 void profanity_run(void);
+void prof_handle_login_success(const char *jid);
+void prof_handle_lost_connection(void);
+void prof_handle_failed_login(void);
 void prof_handle_typing(char *from);
 void prof_handle_incoming_message(char *from, char *message);
 void profanity_shutdown_init(void);