Upcoming 1.0.9 features

- extensible exporter architecture
allow others to plug in new XML formats through
an extension

- safe ranges on metrics and warnings for out of range values
This can be enabled/disabled in the preferences.
There is no UI yet to modify the ranges. Does
anybody want to see this before I have a UI?
If so, please post a comment.

- column-widths bug fixed and view now persists the user selected widths across sessions