CROSS-1208: PLF4 Alpha1 update dependencies
[maven-release-plugin] prepare release 4.0.0-Alpha1
[maven-release-plugin] prepare for next development iteration
CROSS-1208: Update dependencies version for next snapshot
Use a more generic SNAPSHOT name to avoid switches after releases of Alpha, Beta ...
Merge branch 'master' into feature/unified-search

Conflicts:
	pom.xml
	wiki-extension/pom.xml
	wiki-extension/wiki-extension-webapp/pom.xml
	wiki-injector/pom.xml
	wiki-macros/pom.xml
	wiki-macros/wiki-macros-iframe/pom.xml
	wiki-renderer/pom.xml
	wiki-service/pom.xml
	wiki-webapp/pom.xml