reverse proxy: adjust dst when reading flows, fix #346
replay: carry over SNI value
Merge branch 'master' of github.com:mitmproxy/mitmproxy
fix support for chained certificates
fix typo
add mini documentation
Merge branch 'cert_chains'
Add SOCKS5 mode, fix #305
fix cert forwarding
add test case for #375
remove default_ca
add generic tcp proxying, fix #374
fix race conditions in tests
tweak SSL detection heuristics
fix #378
fix #346
Documentation re-org

- No longer using README.md in the rendered documentation.
- Rendered doc instrutions are now for the released version of
mitmproxy, with dev install instructions in the README.md
First redraft of modes documentation
CHANGELOG and CONTRIBUTORS
Keep sidebar ordering alphabetical, add SOCKS documentation