Change version from 2.3.0-SNAPSHOT to 2.3.1.Final
Change project version from 2.3.1.Final to 2.3.2-SNAPSHOT in all pom.xml's

zsh:
% for ii in **/pom.xml; do
sed -i 's/2.3.1.Final/2.3.2-SNAPSHOT/' $ii
done
Merge pull request #1036 from clebertsuconic/2.3.x

release 2.3.1 commit