Build for version 6 is broken

[hasalex]

As @fcorneli pointed it several months ago, the build of EAP 6 has issues with dependencies.
On my latest test, script is failing quickly because it cannot download maven.

We have a few options with that:

• Drop support for EAP 6
• Continue to support it and fix the issues
  • in the same repository
  • in a new eap-build-6 repository

WDYT?

[fcorneli]

See also:
#178