#26 store expanded urls
#26 remove node state
#26 restore the visible rect
Merge branch 'master' into develop
#25 add an option to show folders first
Merge branch 'master' into develop
#25 change the menu item's state when the action is triggered
#25 add hidden file check box in the pref window
#25 add sync pwd menu item in the file browser
Merge branch 'develop'