changed text to filter
moved changedData to options
calculate date only once
major rewrite, added css
use id of chart
use stack layout
dynamically determine height and width
improved the edit mode
removed nvd3
added graph lib
improved documentation
sync
sync
extended create new, can now also be triggert easily from outside
added conf param wether to append or to prepend new entries
new charts - yay!
added no-data handling
use default colors if none given
use new chart lib
cleanup code
extended the editmode
show custom error message if provided