Update history.md for beta 1.2

Mac high sierra config workaround

Fixed typo

WIP: This is what I have tried so far. The config window does NOT display when accessed via the menu. It still works (the old/right way) in Sierra when accessed via the About window. If you first try to access it via the menu and then access it via the Configuration button on the About window, it displays twice!

Automatically load images based on screen scale

Fix keyboard menu popup view width

Remove old migration code

Fixes for deleting keyboards

Fix computation of latest keyboard version

Fix crash on iOS 8 due to nil nibName

Fix custom keyboard download

Fix keyboard status check

Add types to notifications

Modifies the iOS app build script.

Replace keyboard and language dictionaries with structs