Updated project

I have made some modification on the framework:

- Update framework project type from 3.0 to 3.2 (recommended for XCode 4)
- Removing some undefined reference about some images ressource in the framework (maybe a ressource on a developer computer that don't be copied into the framework...)
- Adding a gitignore condition to don't copy file in build folder 
- Remove a useless part of code which made a conditions on a object which don't need conditions to determine it's value (https://github.com/vincentsaluzzo/ios4me/commit/7146e01691c8499b3b64ae5176a6a4aa3375e229)

I have test the builded framework in a personal application, and all is clear but I invite you to try before pulling my commits into your branch