Log Message:
Update to 0.9.13. Changes:
- Fix a crash with Python bindings upon signal reception (Fix #200).
- New --with-system-ltdl configure switch. The default is now to use the
  system wide ltdl library if it is available, unless specified otherwise
  (Fix #199).
- Prevent NULL pointer dereference if no permission is specified after the
  permission type (Fix #197).
- Upon IDMEFCriteria parsing error, recover from broken parser stater (Fix #195).
- Detailed error reporting on IDMEFCriteria parsing error.
- Fix string and possible criteria leak on IDMEFCriteria syntax error.
- Prefer anonymous authentication rather than SRP. We do this because there
  are compatibility issue with SRP between different GnuTLS version
  (Should fix #187).
- When dumping AdditionalData of type byte-string to string, encode the data \ 
using base64.