Fix bug in automatic file reload
Tweak change log
Prevent reload prompt when file is not dirty

windowDidBecomeKey_ was being called twice because the window controller was the delegate and was also being added as an observer.
Fix bad “Save as...” prompt on save after reload
Fix bug in base command sheet controller
Eliminate old VarArgs to make room for new one
Add File command bar field type
Initial implementation of open command

Still needs a lot of work.
Improve command bar auto-complete menu
Fix/change file auto-complete suggestions
Move CommandView into platform
Improve open command auto-complete
Improve File command argument type

- allow spaces in filenames
- support for absolute paths
- auto-expand home dir (~)
Case-insensitive file path auto-complete
Scroll to selected item in ListView
Omit hidden files from path auto-complete by default
INCOMPLETE VarArgs command argument type
Make “open” text command support multiple files
Make “open” command insert after current editor
Move FakeTextView into editxt.test.command