updated classmap generator and class file locator

it can now find multiple files in a single namespace and supports traits
basically it was synced with zf2
Merge pull request #131 from prolic/classmap_generator

updated classmap generator and class file locator
add require_once to class file locator
Merge pull request #131 from prolic/classmap_generator

updated classmap generator and class file locator
[#131] Mark 5.3-specific tests skipped

- when PHP version is less than 5.3
[#131] CS fixes
Merge branch 'hotfix/131'

Close #131