added a link to stackoverflow
improved explanations
added FAQ on how to open with Luke
MINDEXER-91: Add a Spring based example

Added directory structures.
MINDEXER-91: Add a Spring based example

Extracted the currently existing examples into a separate module.
MINDEXER-91: Add a Spring based example

- Corrected the README.md of the basic module as it was showing the wrong profile.
- Added a minimalistic Spring implementation with a simple service.
- Added two Spring contexts -- one for the actual maven-indexer specific classes and one for the the tests.
- Setup logging via SLF4J + Logback.
- Added README.md.
- Added a simple generator for valid artifact files (useful for testing without needing to have the resources under version control; this could probably be used in the indexer-core as well).
- Added a repository booter which creates test repositories with indexes.
MINDEXER-91: Add a Spring based example

- Committing forgotten change to parent pom.xml.
MINDEXER-91: Add a Spring based example

- Fixed the parent complaints.
MINDEXER-91: Add a Spring based example

- Fixed the pom's description.
Add all test repositories as excludes to Rat.
Move Rat configuration to pluginManagement, so that it can be inherited properly.
Inherit Rat configuration from parent.
Add version for maven-javadoc-plugin, so that Maven does not output warnings about it.
added index fields reference documentation
some precison on what to open