Merge pull request #1 from trehn/pimp-my-html

improvements to HTML template
htmlios: Sort items by status, hostname, service
htmlios: Print error when curl fails
htmlios: Hide scroll bar
htmlios: "-E" to exclude services
htmlios: Sort "critical" over "unknown"
htmlios: Show "okay smiley" when everything's okay
htmlios: Larger main font size
htmlios: Do not depend on external resources

Oswald can be installed directly, see:
https://aur.archlinux.org/packages/ttf-google-fonts-git/
Report curl exit codes