sstp-client:
* HTTP Proxy Digest Authentication support
* Improve Certificate Verification
  - Restrict certain cipher suites.
  - Support for CRL and certificate revocation
* Automate the unit-tests
  - Autotools to help do this 'make check'
* Build doxygen target
* SSTP Server Support

network-manager-sstp:
* Sync up to latest git branch for pptp (any bug fixes?)
* Add proxy configuration support
* Additional options to limit the crypto
