LowercaseConstantsFixer - rewrite to handle new test cases
bug #796 LowercaseConstantsFixer - rewrite to handle new test cases (keradus)

This PR was squashed before being merged into the 1.3-dev branch (closes #796).

Discussion
----------

LowercaseConstantsFixer - rewrite to handle new test cases

LowercaseConstantsFixer - rewrite to handle new test cases.
Resolves #793.

May not work on php 5.3 yet

Commits
-------

c228381 LowercaseConstantsFixer - rewrite to handle new test cases