Adding Tamas' examples (git@github.com:cstamas/maven-indexer-examples.git) as a separate module.
- Added the examples to the <modules/>.
- Edited the README of the examples a bit.
Removed dummy javadoc.
Renamed the example package to examples.
Made the tests run only when -Ptests is specified. The tests will still compile, but not execute, unless this profile is enabled.