Hide slogan on small screens to prevent it from overflowing and doubling the size of the navbar.
Update README.md
Merge pull request #75 from jdscheff/master

Hide slogan on small screens
Merge pull request #74 from jehkinen/master

- charts diagram fixed
- global average 24h sliding window history implemented

This is a paid work. Code ownership transferred to me.
- fixes to history daemon
- empty commit
Merge branch 'master'

Conflicts:
	README.md
	history_daemon.py
	www/index.htm