Remove references to outdated packages attribute in Configuration element.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1611951 13f79535-47bb-0310-9956-ffa450edef68
Remove references to outdated packages attribute in Configuration element.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1611952 13f79535-47bb-0310-9956-ffa450edef68
Fix typo.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1611953 13f79535-47bb-0310-9956-ffa450edef68
Use "private static final" in examples.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1611954 13f79535-47bb-0310-9956-ffa450edef68
Remove extra semicolon.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1611956 13f79535-47bb-0310-9956-ffa450edef68