PROTOCOLS-102 Bumped version numbers

* commons-net 3.2
* commons-lang 2.6
* mime4j 0.7.2
* commons-collection 3.2.1
* commons-codec 1.7

git-svn-id: https://svn.apache.org/repos/asf/james/protocols/trunk@1429245 13f79535-47bb-0310-9956-ffa450edef68