New modules should use the ZF\Apigility\Autoloader

- instead of the Zend\Loader\StandardAutoloader implementation, as it
  allows underscores in both namespaces and class names.
Use ZF\Apigility\Autoloader

- instead of StandardAutoloader
Merge branch 'feature/use-psr-4-autoloader-for-new-apis'

Updates module creation to use the ZF\Apigility\Autoloader instead of the
Zend\Loader\StandardAutoloader.
Moved zf-configuration controllers into admin

- Allows zf-configuration to have zero dependencies, other than on ZF2.
- All other admin API controllers are in this module as well; should keep them
  together.
Merge branch 'feature/configuration-controllers'

Moves controllers from zf-configuration into this module, which means:

- fewer dependencies in zf-configuration (and removes a circular dep)
- all admin api controllers are now under the same umbrella
PSR-4

- Updates package structure to use PSR-4
Merge branch 'hotfix/psr-4'

Close #128
Remove coveralls support

- was erroring on travis due to inability to read clover XML, and coveralls has
  literally never run the repo.
Enable PHP 5.3 tests for travis
Detect between apc and apcu for opcache detection

- apc.enable is used for both APC and APCu; we only need to worry about it in
  the case of the former.
Merge branch 'hotfix/apcu-detection'

Detect between APC and APCu when doing opcache detection.
Wrote new controller for detecting write permissions

- Determines if we can write to the config and module directories.
Enable fs-permissions as RPC service
Raise modal when FS is not writable

- Raises a dialog when the filesystem permissions are not writable.
- Updated controller to report the ENV user the server is running under, so that
  we can report that in the modal dialog.
Rebuilt distribution
Merge branch 'feature/detect-fs-permissions'

New feature: detect FS permissions on initial load of admin, and display a modal
dialog if we cannot write to the filesystem.
Draft validator module name for API
CS fixes
Initial changes to config to support full list of input-filters
Added ServiceNameValidator, commented out untested input-filters