Openutils-mgnltasks is a collection of magnolia update tasks that can be reused in custom magnolia modules.
Most of them are useful to handle the bootstrap or configuration of simple content modules. See the full list and description in javadocs.
Openutils-mgnltasks is licensed under GPLv3 (forced by the fact that magnolia 3.5 is GPLv3)
http://www.mvnrepository.com/artifact/net.sourceforge.openutils/openutils-mgnltasks
3.5.x versions are compatible with magnolia 3.5.x and 3.6.x. 4.x versions requires magnolia 4.0.