this is 0.8 final

--HG--
branch : 0.8
back to dev

--HG--
branch : 0.8
merge with 0.8
Added tag v0.8.0 for changeset f6ed7119860f

--HG--
rename : lib/sly/Slice/RendererImpl.php => lib/sly/Slice/Renderer.php
extra : rebase_source : 14f077aa7a7ca466f174ac8beeb7775dfbaa18b7