Remove ucore_ prefix from headers and source files

src/hashint.c

@@ -0,0 +1,13 @@
+#include "ucore/hash.h"
+
+uint32_t 
+uc_hashuint(uint32_t a)
+{
+    a = (a ^ 61) ^ (a >> 16);
+    a = a + (a << 3);
+    a = a ^ (a >> 4);
+    a = a * 0x27d4eb2d;
+    a = a ^ (a >> 15);
+
+    return a;
+}