Bump version to alpha1

Update scripts

Update version in CMakeLists.txt

Bump version

Bump to r1

git-describe.cmake: use 8-digit git commit abbreviations

The length here was previously determined automatically, and jumped from 7 to 8
recently, breaking devel/check-release. Since Git seems to think 8 characters is
better now, specify it explicitly to avoid future breakages.

Bump to beta1

xml: Add some linux64 offsets, fix ui_sidebar_menus alignment

Fixes DFHack#1053
Fixes DFHack#1054
Fixes DFHack#1055

Bump version to 0.43.05-alpha3

bump to alpha2