reenabled Tor for KitKat, changed some method calls to reflect OnionKit's api changes
updated ref for onionkit submodule; now references trustmanager_fix branch
fixed proxy arguments for Tor integration.

Tor integration is now fully functional again for KitKat.
Merge branch 'master' into kitkat_tor
WebKitProxy now uses the webview's applicationcontext
Merge branch 'master' into kitkat_tor
Merge pull request #113 from duckduckgo/kitkat_tor

Tor