Potential fix to #38

Allows plugin_opts for gq-server to be in semi-colon separated format.

Trying to make TCP Fast Open work in Go with gotfo is a nightmare and cause troubles: cbeuw/GoQuiet-android#2

This version of GoQuiet stopped using gotfo and dropped TCP Fast Open support and started using the new Dialer type in go1.11 to implement file descriptor protection callback (needed in Android).

It is still backward-compatible

cbeuw/gotfo@96ff530

gq-server CPU usage fix

A major bug fix that affects the performence 100% of the time
PLEASE UPDATE YOUR gq-client

Now supports browser characteristic of both chrome and firefox, also added support for standalone mode

Edit 8/3/18: Add MIPS32 client (untested)

Edit 17/3/18: DO NOT USE gq-client from this release

Edit 17/3/18: DO NOT USE gq-client from this release