Flip back to dev mode and fix HOWTO_RELEASE instructions

HOWTO_RELEASE

@@ -98,7 +98,7 @@ Release procedure
   - Commit all changes
   - If this is a minor or major release (no branch exists):
 	   $ rev=x.x
-	   $ git checkout main; git checkout -b "$rev"; git push -u osgeo $rev
+	   $ git checkout master; git checkout -b "$rev"; git push -u osgeo $rev
 
 	   Go to: https://debbie.postgis.net and copy last branch version and make new job
 	   a) Replace PostGIS_* string params with new version

NEWS

@@ -1,8 +1,5 @@
-PostGIS 3.2.0alpha1
-2021/09/10
-
-This version requires PostgreSQL 9.6 or higher, GEOS 3.6 or higher, and Proj 4.9+
-Additional features are enabled if you are running GEOS 3.9+, Proj 6.1+, and PostgreSQL 14+.
+PostGIS 3.2.0
+2021/xx/xx
 
  * Breaking changes *
   - #4824, Removed `--without-wagyu` build option. Using Wagyu is now mandatory to build with MVT support.
@@ -83,9 +80,11 @@ Additional features are enabled if you are running GEOS 3.9+, Proj 6.1+, and Pos
   - #4808, ST_ClusterKMeans now supports max_radius argument. Use it when you're not sure what is
     the number of clusters but you know what the size of clusters should be. (Darafei Praliaskouski)
 
+PostGIS 3.2.0alpha1
+2021/09/10
 
-PostGIS 3.2.0
-2021/xx/xx
+This version requires PostgreSQL 9.6 or higher, GEOS 3.6 or higher, and Proj 4.9+
+Additional features are enabled if you are running GEOS 3.9+, Proj 6.1+, and PostgreSQL 14+.
 
  * Breaking changes *
   - #4824, Removed `--without-wagyu` build option. Using Wagyu is now mandatory to build with MVT support.

Version.config

@@ -5,7 +5,7 @@
 
 POSTGIS_MAJOR_VERSION=3
 POSTGIS_MINOR_VERSION=2
-POSTGIS_MICRO_VERSION=0alpha1
+POSTGIS_MICRO_VERSION=0dev
 
 # Liblwgeom interface versioning, reset to 0:0:0 (cur:age:rev)
 # when changing POSTGIS_MINOR_VERSION

extensions/upgradeable_versions.mk

@@ -67,4 +67,4 @@ UPGRADEABLE_VERSIONS = \
 	3.1.3 \
 	3.1.4 \
 	3.1.5dev \
-	3.2.0dev
+	3.2.0alpha1