simple-obfs-0.0.5-bp154.2.17

- Add simple-obfs-gcc-buildfixes.patch: Fix build with gcc9,
  patches from upstream git. Replace gcc8 and gcc8-c++ with generic
  c++_compiler BuildRequires.

- Update libcork
- Use gcc8 to fix build on Tumbleweed

- Cleanup spec file with spec-cleaner
- Make building more verbose

- Fix the documentation build with asciidoctor (bsc#1075764):
  simple-obfs-asciidoc-fix.patch

- Update to 0.0.5
  * Minor bug fixes.
  * Fix the building issue on MinGW.

- Initial version 0.0.3
  * Make reverse proxy support optional
  * Make the HTTP obfuscation work behind an NGINX reverse proxy