Add firstname & lastname fields on newsletter form
Needless to display firstname & lastname fields if the user is logged
Fixed code style
Add newsletter test
Removed unused files
Rename file
Fix test bug
Add test@thelia.net to suscriber
Fixed module incorrect ID caching
Fixed issue with empty value : 0, ''
removed debug instruction
Updated tests to set empty value
fixed coding style
changed test
Merge pull request #812 from roadster31/module-fix

Fixed incorrect module ID caching.
Merge pull request #808 from bibich/improvements

Improvements
Merge pull request #813 from bibich/fixes

Fixes config command set for 'empty' value
Merge pull request #783 from mespeche/mespeche

Add firstname & lastname fields on newsletter form
create API model
create a new API Credential