added some meaningful output

Echoing the type of image being built. Enabled quiet building mode.
This makes debugging in case of an error easier and speeds up the
generation of the images, because stdin and stdout do not need to be
redirected. stderr is redirected anyways.
more consolidationin the Dockerfiles
move .niogit to the correct location

since we are running as jbosseap user and the lucene .index directory
as well as the .niogit directory are expected to be present in the
directory where the eap process was started, we needed to move the
.niogit directory to the /home/jbosseap directory as well