Merge pull request atom#15777 from atom/fb-mdt-fix-mouseup-cleanup

Fix mouseup listener cleanup when dragging in text editor

Merge pull request atom#15777 from atom/fb-mdt-fix-mouseup-cleanup

Fix mouseup listener cleanup when dragging in text editor

⬆️ autocomplete-plus

⬆️ whitespace

⬆️ styleguide

Merge pull request atom#15613 from atom/mb-fix-mac-snapshot-verificat…

…ion-on-beta

Use the Atom Beta executable to verify startup snapshots when building Beta

1.20.0

Merge pull request atom#15580 from atom/as-update-scrollbars-on-detac…

…h-reattach

Flush scroll position to dummy scrollbar components on re-attach

Merge pull request atom#15580 from atom/as-update-scrollbars-on-detac…

…h-reattach

Flush scroll position to dummy scrollbar components on re-attach

Merge pull request atom#15546 from atom/as-never-autoscroll-when-clic…

…king-on-content

Don't autoscroll when using the mouse to add, delete or move selections