map password field Enter/ESC to buttons

closes #4869
Update changelog for recent C&C changes.
Merge pull request #5011 from pchote/psydev-changelog

Update changelog for recent C&C merges.
Support borderless panel types.
Allow custom button types.
Fix tooltips not displaying in the pre-shellmap environment.
Allow button tooltip labels to be set by UI logic.
Allow SheetBuilder to be used from mod code.
Add RGBASpriteWidget.
Replace ra logo psd with svg.
Extract mod selector into its own mod.
Update changelog.
Merge pull request #4953 from pchote/modchooser

Overhauled mod selector.
show disabled overlay when TD defenses power down

closes #5005
Added ra map - seaside 2
Decrease MRJ cost
Buff shock trooper
Chronotank teleport distance increased and teleport cooldown decreased
automatic upgrade rules for new DisabledOverlay
Merge pull request #5019 from cjshmyr/newmap

Add RA map - Seaside 2