docs(changelog): 3.1.0.Final -> 3.1.0-SNAPSHOT for now
Will leave it as snapshot until released so that when it's pulled into Apiman website it does
not give misleading impression that the release has been done.
MODIFY
CHANGELOG.adoc
CHANGELOG.adoc
= Changelog
-All notable changes to Apiman will be documented here, as of Apiman 3.0.0.Final.
+All notable changes to Apiman will be documented here (as of Apiman 3).
// tag::3.1.0.Final[]
-== 3.1.0.Final
+== 3.1.0-SNAPSHOT
=== Added

docs(changelog): 3.1.0.Final -> 3.1.0-SNAPSHOT for now

Will leave it as snapshot until released so that when it's pulled into Apiman website it does
not give misleading impression that the release has been done.