Update NEWS with latest changes
configure.ac: Make note about SSL provider in summary easier to understand
house_arrest: Use more generic description for documentation
Make all "include guards" for all headers consistent
configure.ac: Require cython 0.17.0 or later

Earlier versions are just too different and cause to many issues.
cython: Remove custom stdint.pxi and use libc.stdint cimport instead
cython: Add support for receive_with_timeout() method on PropertyListService
cython: Port all binding code to latest API and fix broken compilation
cython: Add all service protocols which brings Python bindings to 100% coverage
Update NEWS with latest changes