Closes #113 Adding required Sonatype OSS properties to poms to allow for...

... release
For #98, I reformatted our Maven poms to use 2 spaces for XML indentation as we use 2 spaces in Java.  After you rebase with master, you should make sure your changes are 2 spaces.  In Eclipse, you can modify your preferences to default to 2 spaces for XML and reformat selected text using Shift+Ctrl+F .  I am sure IntelliJ has something similiar.