[TASK] Migrate to using namespace core class names
Merge pull request #466 from NamelessCoder/namespaces

[TASK] Migrate to using namespace core class names
[BUGFIX] Removed prefix slash from namespaces class strings
Merge pull request #483 from hmspl/namespaces

[BUGFIX] Removed prefix slash from namespaces class strings
[BUGFIX] Allow for filter value 0

Fixes #480
[TASK] Tiny Typo in IteratorFilterTest
Merge pull request #486 from cedricziel/iteratoreFilterinhoFixos

[BUGFIX] Allow for filter value 0
[DOC] Change incorrect include/exclude use