Merge pull request #5 from solrsystem/master

Sigar has been reverted
Video
Update README.md
build helper plugin version
logging settings updated
test room name updated
Why was it 'tapcat' ?
Java hack explanation
Trim is useless
no need for rolling appender in tests
Code less, create more
Most of code can be simplified. That's an example
More code to remove
Chatbot name updated in DB. Alice <-> Vasilich
Cpu usage command
Merge remote-tracking branch 'upstream/master'