hpicgs/globjects — pull request #246 by cgcostume (2014-08-29 13:39:14+00:00)
Title: Lazzy refined strategies

refine strategies
* implementations are singletons now
* implementations can reuse other implementations (e.g., legacy)
* implementations are initialized lazy by strategies
* strategy is specified via enum classes of api classes that are using the implementations
(note: implementations should be changed at runtime with care...):
```Shader::hintIncludeImplementation(...)```
* started placing some ```using namespace gl``` in most modified files
* added singleton template to globjects-base that is used for all implementations