added youtube channel link

videos are way better than the simple screenshot
Fixed issue by mimiking a negative lookbehind
Fixes after review
import rewire to assist in testing
Only allow leading numbers and letters (largely to prevent names like "..")
Initial extension manager dialog/view/model (with non-final layout)
Update comments to remove the Mustache note, since these can work with Handlebars too
Code review fixes.
Renamed ExtensionMgr to ExtensionManager
Tweaked dialog so it's centered a little better
Move HTML templates to htmlContent
Updated by ALF automation.
remove spurious IntelliJ files
updated package validator based on comments in #3437
Merge pull request #3437 from adobe/dangoor/disallow-dot

Disallow leading dots
Merge pull request #3453 from adobe/alf

ALF Automation
Merge pull request #3443 from adobe/nj/extension-list

Initial extension manager dialog/view/model (with non-final layout)
Don't throw exceptions when mousing over non-text-editor inline widgets
Merge pull request #3457 from adobe/pflynn/mouseover-inline

HoverPreview: exception when mousing over non-text-editor inline widgets
Merge pull request #3331 from WebsiteDeveloper/Issue-3041

Fixed: Issue 3041 If you remove displayKey for Decrease Font Size shortcut, it will show up as Ctrl++ on Window