update namespaces
Merge pull request #26 from antograssiot/namespace-update

update namespaces
Rename files and update composer.json.

Shell files moved around, update upgrade tool to reflect those changes.
Merge pull request #27 from cakephp/updates

Rename files and update composer.json.
Ignore src/ in paths.

The src/ directory should not be converted into a namespace.
Put tests/ into correct namespace.
Make locations task more complete.

Moving files into src/ and tests/ is easy to automate and saves annoying
steps for developers.
Merge pull request #28 from cakephp/ignore-src

Ignore src & other fixes
Update test case.
Add support source to composer.json
update PhpConfig namespace
Add i18n placeholder upgrade.
Dont escape underscores in regex.