Charts added

Enhancements

• Added ability to create charts.
• Keep menu3 visible on small (phone) screens.

Bug fixes

• Auth settings on methods in AdminHelper were not getting picked up, so users could not log in.
• Included templates did not work properly under Linux.
• Fix default text for e.g. "Hide hidden" accounts button (was back to front).
• Log folder auto created if it doesn't exist.