Log Message:
Update security/hitch to 1.4.6.

Update security/hitch to 1.4.6.

hitch-1.4.6 (2017-06-06)
- Fix a problem that broke mock-based builds for el6/el7

hitch-1.4.5 (2017-05-31)
- Set SSL_OP_SINGLE_ECDH_USE to force a fresh ECDH key pair per
  handshake
- Fix a bug where we ended up leaking a zombie process on reload
- Fix a bug where the management process could not find its
  configuration files after a reload when chroot was configured
- Output the offending line on a configuration file parsing error
- Fix build for non-C99/C11 compilers
- Fix the shared cache code to make it work also with OpenSSL 1.1.0
- Fix an unchecked loop situation that could occur when running with
  shared cache enabled
- Various autotools configuration fixes
- A few minor doc fixes