Improve default PHPMD checks

[josephdpurcell]

Problem

By default, PHPMD has the following two checks which I believe are problematic:

• The camelCase variable names apply to Zend and Symfony but not Drupal and Wordpress.
• Avoiding "else" statements is controversial: I don't believe there is consensus that the use of else statements correlates with poor code. And it is a little redundant in that it would be caught by Cyclomatic Complexity and NPath Complexity metrics.

Proposed Resolution

• Turn off the CamelCaseClassName, CamelCasePropertyName, CamelCaseMethodName, CamelCaseParameterName, CamelCaseVariableName checks by default.
• Turn off the ElseExpression check by default.

[dblandin]

This proposal sounds great to me 👍

[purplefish32]

👍