own HAL support
RepositoryHub
clean
RepositoryMapper and test
Refactoring
Refactoring
builders
RepositoryMapper: added getRepositoryHub
cleanup
wip
Merge branch 'master' of github.com:yunait/level3 into security

Conflicts:
	src/Level3/Accesor.php
	src/Level3/Controllers/Silex.php
	src/Level3/Messages/Response.php
	src/Level3/Messages/ResponseFactory.php
	tests/Level3/Tests/AccessorTest.php
	tests/Level3/Tests/ResponseTest.php