Log Message:
Update net/mitmproxy to 0.17

Changes:
9 April 2016: mitmproxy 0.17
    * Simplify repository and release structure. mitmproxy now comes as a single \ 
package, including netlib and pathod.
    * Rename the Python package from libmproxy to mitmproxy.
    * New option to add server certs to client chain (CVE-2016-2402, John Kozyrakis)
    * Enable HTTP/2 by default (Thomas Kriechbaumer)
    * Improved HAR extractor (Shadab Zafar)
    * Add icon for OSX and Windows binaries
    * Add content view for query parameters (Will Coster)
    * Initial work on Python 3 compatibility
    * locust.io export (Zohar Lorberbaum)
    * Fix XSS vulnerability in HTTP errors (Will Coster)
    * Numerous bugfixes and minor improvements