Make the `struct` and `traits` modules private.

Now that the documentation of public export of private modules is inlined on the exporter's
documentation, there is non need to export anything but the `na` module.

src/lib.rs

@@ -119,8 +119,8 @@ extern mod std;
 extern mod extra;
 
 pub mod na;
-pub mod structs;
+mod structs;
-pub mod traits;
+mod traits;
 
 // mod lower_triangular;
 // mod chol;

src/na.rs

@@ -45,7 +45,7 @@ pub use structs::{
     Mat1, Mat2, Mat3, Mat4,
     Mat5, Mat6,
     Rot2, Rot3, Rot4,
-    Vec0, Vec1, Vec2, Vec3, Vec4, Vec5, Vec6
+    Vec0, Vec1, Vec2, Vec3, PVec3, Vec4, Vec5, Vec6
 };
 
 //

src/structs/mod.rs

@@ -2,17 +2,17 @@
 
 pub use self::dmat::DMat;
 pub use self::dvec::DVec;
-pub use self::vec::{Vec0, Vec1, Vec2, Vec3, Vec4, Vec5, Vec6};
+pub use self::vec::{Vec0, Vec1, Vec2, Vec3, PVec3, Vec4, Vec5, Vec6};
 pub use self::mat::{Identity, Mat1, Mat2, Mat3, Mat4, Mat5, Mat6};
 pub use self::rot::{Rot2, Rot3, Rot4};
 pub use self::iso::{Iso2, Iso3, Iso4};
 
-pub mod dmat;
+mod dmat;
-pub mod dvec;
+mod dvec;
-pub mod vec;
+mod vec;
-pub mod mat;
+mod mat;
-pub mod rot;
+mod rot;
-pub mod iso;
+mod iso;
 
 // specialization for some 1d, 2d and 3d operations
 #[doc(hidden)]