A couple PRs/commits to clean stuff up, including:

• deprecation warnings (Maven)
• unused variables / imports (Eclipse)
• copyright dates

This one [1] was applied already, as it was a simple substitution:

[WARNING] org.jboss.tools.tycho.sitegenerator.GenerateRepositoryFacadeMojo#session:
[WARNING]   The syntax
[WARNING]     @parameter expression="${property}"
[WARNING]   is deprecated, please use
[WARNING]     @parameter property="property"
[WARNING]   instead.

[1] https://github.com/jbosstools/jbosstools-maven-plugins/commit/eac10476e6572bd13fd0448bebd7173a6bb42fe9

However, this one [2] was a bit more complicated as I switched from expression="" to default-value="" instead. Not sure if this is correct:

[2] https://github.com/jbosstools/jbosstools-maven-plugins/pull/18