[undo-overrider] 1st commit with most stuff already in it
[undo-overrider] Some rewrite and new approaches
[undo-overrider] Some updates to try to solve the bugs
Merge branch 'undo-overrider' of github.com:brunoais/SCEditor into undo-plugin
Change sourceMode() to save the current range before switching.
Update JS styling to match new JSC and JSHint style rules.
Add ability to set an undo limit.
Fix unit tests for previous sourceMode() update.
Add all plugins to debug test.
Rename undoOverrider plugin to undo.
Update changelog and roadmap
Rename undoOverrider to undo