fixed build status badge
adapted license header (issue #28)
updated license headers (issue #28)
configured sonatype oss deployment (issue #33)
added missing plugins (issue #33)
cleanup javadoc, since it's much more picky in java8 that used to be (issue #33)
added gpg plugin (isse #33)
sources are not attached on deployment (isse #33)
fixed javadoc signing
very early release under the new naming (issue #33)
next development iteration
moved all release related stuff to a profile, to avoid issue with ci builds