Fixes #249:  Apply Hadoop coding conventions to all source files

Fixes #249

Imported [Cloudera's Hadoop Eclipse Formatter](https://github.com/cloudera/blog-eclipse/blob/master/hadoop-format.xml) and ran all Java source files through the formatter. For non-Java source files, converted all tabs to 2 spaces and removed trailing whitespace.

Tested by bringing up local Solo Server instance and running some sample workflows.