Issue #77 Configure checkstyle for the following rules:
* Unix EOL
* No tab characters
* Copyright headers on *.java files
Issue #77 Configure Findbugs
* Ignore failures
* run only on main source set of module
Issue #77 configuration of jacoco plugin for code coverage
Issue #77 Bump gradle version to 2.1
Merge pull request #84 from ljacomet/issue-77

Issue 77 - build tooling
Added .DS_Store to ignore list
Just the code changes (no unit tests yet).