Organise the log4j-core pom.

  - Added some comments.
  - Collected the test-scoped dependencies into its own "group".

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1583172 13f79535-47bb-0310-9956-ffa450edef68
Add comments to net package-info.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1583174 13f79535-47bb-0310-9956-ffa450edef68
Move JMS code into their own packages.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1583177 13f79535-47bb-0310-9956-ffa450edef68
Update log4j-core pom comments.

  - Clarified use of mockejb and jmdns

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1583178 13f79535-47bb-0310-9956-ffa450edef68
Add package-info and comments for JMS packages.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1583183 13f79535-47bb-0310-9956-ffa450edef68