Commit: (548537) Fix memory leaks in DNA plugin

[Nathan Kinder]

Thanks to Noriko for her review!  Pushed to master.

Counting objects: 13, done.
Delta compression using 2 threads.
Compressing objects: 100% (7/7), done.
Writing objects: 100% (7/7), 805 bytes, done.
Total 7 (delta 5), reused 0 (delta 0)
To ssh://git.fedorahosted.org/git/389/ds.git
    c4c1ea0..176c542  master -> master