vi/websocat v1.7.0

Default threaded stdio, `log:` filter

on GitHub

Changelog:

• Websocat now does not set terminal to nonblocking mode if isatty by default. This should help with #76.
• New overlay log: that prints bytes as they travel though Websocat, for debugging.

Changed in released files:

• Added websocat_arm-android-nosignal for running Websocat on old (e.g. 4.4) Android devices.
• websocat_mipsel-linux-static failed to build. Use nossl version or reach for v1.6.0.
• websocat_i386-linux-static fails due to alexcrichton/openssl-src-rs#86. Keep on using v1.6.0's version for a while.
• Now I realize that OpenSSL is statically built-in everywhere, not just in *-static builds. Deb package dependency is probably irrelevant now.