update tests Auth Cache Core Module Locale
revert modifications Model_Write
modify Criteria and add tests Module_Helper
Convert qrcode module to a service provider

  * Define an 'qrcode' provider contract
  * Use endroid/qrcode package for qr generation library, add to composer.json
  * Implement in Codex module

Eventually, this extension should be moved out of core, and into a composer installable module repository so that the library is only added if needed.
Remove obsolete preload file
Merge pull request #168 from geekwright/qrcode

Convert qrcode module to a service provider
Remove dead file, some documentation cleanups
Add thumbs extension, a thumbnail service provider

* define Thumbnail provider
* create Smarty thumbnail function using service
* convert phpthumb usagem and remove library
Merge pull request #170 from geekwright/thumb

Add thumbs extension, a thumbnail service provider
Merge pull request #169 from geekwright/qrcode

Remove dead file, some documentation cleanups
Cleanups related to new service providers

* Some refinements in the thumbs module
* Implement thumbs and avatar services in publisher
* Some refinements to Avatar service to improve utility
* Add 'service' type to to Xoops\Module\Admin->addConfigBoxLine so modules which depend on a service can check that a provider is installed (i.e. 'images' depends on a 'thumbnail' service)
Some minor cleanups
Merge pull request #171 from geekwright/cleanup

Cleanups related to new service providers
Merge pull request #166 from alain91/branch100

update tests Auth Cache Core Module Locale
add test and patch some xoops_lib
recreate deleted xoopscaptchaTest
lot of new test files
more class/xml test files
Change Zebra_Image to composer managed
Fix filename