Moved hydra to its own namespace

include/vector3.h

@@ -36,7 +36,7 @@
 #include "vector2.h"
 #include "vector4.h"
 
-namespace kraken {
+namespace hydra {
 
 class Vector3
 {
@@ -136,16 +136,16 @@ public:
   static Vector3 Slerp(const Vector3& v1, const Vector3& v2, float d);
   static void OrthoNormalize(Vector3& normal, Vector3& tangent); // Gram-Schmidt Orthonormalization
 };
-static_assert(std::is_pod<Vector3>::value, "kraken::Vector3 must be a POD type.");
+static_assert(std::is_pod<Vector3>::value, "hydra::Vector3 must be a POD type.");
 
-} // namespace kraken
+} // namespace hydra
 
 namespace std {
 template<>
-struct hash<kraken::Vector3>
+struct hash<hydra::Vector3>
 {
 public:
-  size_t operator()(const kraken::Vector3& s) const
+  size_t operator()(const hydra::Vector3& s) const
   {
     size_t h1 = hash<float>()(s.x);
     size_t h2 = hash<float>()(s.y);