Upgrade bundled flot to 0.8.3
Merge pull request #134 from andig/upgrade-flot

Upgrade bundled flot to 0.8.3
Fix middleware not inherited on nested groups
Merge pull request #135 from andig/fix-nested-groups-middleware

Fix middleware not inherited on nested groups
Fix coding style
Merge pull request #136 from andig/code-cleanup

Fix coding style
Allow hiding properties from dialogs
Merge pull request #137 from andig/hide-rare-properties

Allow hiding properties from dialogs
Fix an issue with inadvertently changing properties introduced by performance optimization 8ac2c503
Merge pull request #138 from andig/fix-property-casting

Fix an issue with inadvertently changing properties
Fix jshint warnings
Auto-hide cost column if cost is zero
Merge pull request #139 from andig/fix-jshint

Fix jshint warnings
Merge pull request #140 from andig/auto-hide-costs

Auto-hide cost column if cost is zero (cool idea! :-) )
Fix NaN error
Merge pull request #141 from andig/auto-hide-costs

Fix NaN error
Add json export
Merge pull request #142 from andig/enhance-exports

Add json export
Add support for multiple y-axes and y-axis labels
Merge pull request #132 from andig/add-multi-axis

Add support for multiple y-axes