0001: do not leak memory on failure in *_process_init()
0002:
https://fedorahosted.org/sssd/ticket/1575
0003: free request table as the first thing when deallocating rctx
Because we have changed the hierarchy we do not need to special case
responder shut down in dp request destructor anymore. More information
may be found in the list archive:
https://lists.fedorahosted.org/pipermail/sssd-devel/2012-October/011663.html
0004: just a little coding style fix