blink1-tool v2.0.2

This is just a small update that addresses the --servertickle functionality.
For other binaries, see previous release.

The provided binaries are:

blink1-tool: commandline-tool for controlling blink(1)

• blink1-tool-v2.0.2-linux-armv7l.zip -- Raspberry Pi Raspbian
• blink1-tool-v2.0.2-linux-x86_64.zip -- Ubuntu / Debian 64-bit
• blink1-tool-v2.0.2-macosx-x86_64.zip -- Mac OS X 64-bit
• blink1-tool-v2.0.2-windows-x86_64.zip -- Windows 64-bit