Assembly version 2.4.7
Added editable theme editing to start page model
Merge branch 'master' of github.com:n2cms/n2cms
Fixed shouldly reference
Tweaked tree styles
More style tweaking
Fixed some styles in the toolbar area, and moved toolbar buttons out of frame hopefully improving a clipping issue
Null checks for easier troubleshooting

We are getting some errors in the .NET classes for Bitmap and with these
null checks it makes it easier to troubleshoot. I also removed unused
(and obsolete) private methods.
Fixed query for finding referencing items when deleting
Async trash cleanup
Avoid materializing large child collection to calculate child state
Generate lucene document on calling thread when saving items, added support for avoiding materializing child collection when saving ([SortChildren(Append)], [SiblingInsertion(Append)]
Resize frames scriptically
Really the selected item check when deleting
Fixed lucene reference from test project
Improved content generator async ability
CountDescendants extension method
Page info viewer and tweaks to content generator
Changed trash background delete to delete starting from base
Added support for custom sql exception handling