* agent/gpg-agent.c, dirmngr/dirmngr.c, g13/g13.c, scd/scdaemon.c
(USE_GCRY_THREAD_CBS): New macro, defined if
GCRY_THREAD_OPTION_VERSION is 0.
(fixed_gcry_pth_init) [!USE_GCRY_THREAD_CBS]: Don't define.
(main) [!USE_GCRY_THREAD_CBS]: Do not install thread callbacks.
Similar to gpg-agent, dirmngr's wait timeouts are now synced to the
full second. Increased ldap helper thread timeout to 2 seconds.
Nuked some white spaces.