Keep blank URL parameters

TODO: This should probably be configurable
adding __str__ to make export to har nicer
Merge remote-tracking branch 'upstream/master'
Few more fuzzing commands, exclude console app from coverage.
Sync mitmproxy, pathod and netlib version numbers.
Expand "How mitmproxy works". Clean up some un-needed sections.
Docs, examples.
Introduce a filtered flow writer, and use it in dump.py

Fixes #104
Fix typo in setup.py

Fixes #105
Update CONTRIBUTORS.
Add instructions for installing the CA in the IOS Simulator.
Update Android cert install documents.
Add filter to mitmdump examples.
Fix bug that caused mis-identification of some HTTPS connections in transparent mode.
Add the --host option, which uses the value in the Host header for dispaly URLs.

- Can be toggled with "o" then "h" in mitmproxy
- Useful for transparent mode
Enable --host option for mitmdump
Un-break unit tests. Tsk tsk.
Update styling, GameCenter highscore tutorial.
GPLv3 -> MIT
Merge remote-tracking branch 'upstream/master'