PMD 5.1.1 released

• minor version with lots of bug fixes
• Changelog: http://pmd.sourceforge.net/pmd-5.1.1/changelog.html
• Download: https://sourceforge.net/projects/pmd/files/pmd/5.1.1/
• Fixed Bugs: https://sourceforge.net/p/pmd/bugs/milestone/PMD-5.1.1/
• Documentation: http://pmd.sourceforge.net/pmd-5.1.1/