Replace the Rounded<S> type by a non-generic RoundCylinder type.

src/geometry/mod.rs

@@ -19,7 +19,7 @@ pub use self::narrow_phase::NarrowPhase;
 pub use self::polygon::Polygon;
 pub use self::proximity::ProximityPair;
 pub use self::proximity_detector::{DefaultProximityDispatcher, ProximityDispatcher};
-pub use self::rounded::{Roundable, Rounded};
+pub use self::round_cylinder::RoundCylinder;
 pub use self::trimesh::Trimesh;
 pub use ncollide::query::Proximity;
 
@@ -98,5 +98,5 @@ mod wquadtree;
 mod capsule;
 #[cfg(feature = "dim3")]
 mod polygonal_feature_map;
-mod rounded;
+mod round_cylinder;
 mod shape;