cleanup one test and workingset view extensibility
mutable file object for wsv item class
fix comment
rework classes array
allow refresh to update the class list without rebuilding the entire view
update doc to support jQuery for IconProvider
update comment
update comment again
remove unused var in test
Update Persian translation
Update Persian translation
- filter only [Extension] console output for the ExtensionLoader tests
if new pane is created, make it the active pane
merge with master
rtc:nits
Merge branch 'master' into jeff/wsv-extensibility
project model should not resolve fail deferred
Display error messages on rename.

Fix for #9230.
Allows you to create a file/folder with the default name.

Fix for #9216
Clean up after trying to create an invalid file.

Fix for #9232.