Create 1.14.0 tag

Prepare for 1.12.1 Release (MapServer#284)

* Make GDAL sources produce premultiplied RGBA (MapServer#282)
* Prepare for 1.12.1 release
* Fix check failure caused by wrong HTTP header removal on Windows

Co-authored-by: Deandre Metoyer <deepwns@live.com>

Create 1.12.0 tag

Create 1.12.0-rc1 tag

Create 1.10.0 tag

Create 1.10.0-rc2 tag

Create 1.10.0-rc1 tag

Merge pull request MapServer#203 from jbo-ads/fix-dimension-pg

Fix issue with PostgreSQL 2nd level dimensions

Merge pull request MapServer#203 from jbo-ads/fix-dimension-pg

Fix issue with PostgreSQL 2nd level dimensions

Create 1.8.0-rc1 tag