Change naming convention for wrapped ctors and dtor

Use Foo_{new,delete}() instead of {new,delete}_Foo() to ensure that all
methods of the class Foo start with the corresponding prefix.

Examples/c/class/runme.c

@@ -4,9 +4,9 @@
 
 int main(int argc, char **argv) {
   printf("Creating some objects:\n");
-  Circle* c = new_Circle(10);
+  Circle* c = Circle_new(10);
   printf("    Created circle\n");
-  Square* s = new_Square(10);
+  Square* s = Square_new(10);
   printf("    Created square\n");
 
   printf("\nA total of %d shapes were created\n", Shape_nshapes_get());
@@ -33,8 +33,8 @@ int main(int argc, char **argv) {
 
   printf("\nGuess I'll clean up now\n");
 
-  delete_Square(s);
-  delete_Circle(c);
+  Square_delete(s);
+  Circle_delete(c);
 
   printf("%d shapes remain\n", Shape_nshapes_get());
   printf("Goodbye\n");

Examples/c/exception/runme.c

@@ -7,7 +7,7 @@
 #include "example_wrap.h"
 
 int main() {
-  Test *t = new_Test();
+  Test *t = Test_new();
 
   SWIG_try {
     Test_unknown(t);

Examples/c/std_vector/runme.c

@@ -3,7 +3,7 @@
 #include "example_wrap.h"
 
 int main() {
-  Klass *klass = new_Klass();
+  Klass *klass = Klass_new();
   Vint *vint = Klass_vi_get(klass);
   VA *va = Klass_va_get(klass);
 
@@ -26,7 +26,7 @@ int main() {
   printf("\nVector of objects:\n");
   
   for (i = 0; i < 10; i++) {
-    A *a = new_A_std_string_i("hello", i);
+    A *a = A_new_std_string_i("hello", i);
     VA_push_back(va, a);
   }
     
@@ -35,7 +35,7 @@ int main() {
     printf("%s %d\n", A_name_get(a), A_value_get(a));
   }
   
-  delete_Klass(klass);
+  Klass_delete(klass);
 
   SWIG_exit(0);
 }