Make chart servlet size configurable. Change legend background to transparent.
Add new chart parameters to config file.
Merge branch 'master' of https://github.com/openhab/openhab into chart-servlet
This extends the data at the beginning and end of the chart to ensure the full chart is plotted with the correct data.
Shorten legend line length and decrease legend font size.
Update chart theme
Remove debug logging
Merge pull request #785 from cdjackson/chart-servlet

Chart servlet updates