Fixed ruby's newobject1 and newobject2 demos.

Added swig_assert.rb and started using it in some tests.
Added my patches to ruby.cxx, rubyrun.swg, rubystrings.swg
and rubytracking.swg [see: sourceforge]



git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9691 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Lib/ruby/rubystrings.swg

@@ -7,11 +7,11 @@ SWIGINTERN int
 SWIG_AsCharPtrAndSize(VALUE obj, char** cptr, size_t* psize, int *alloc)
 {
   if (TYPE(obj) == T_STRING) {
-    #if defined(StringValuePtr)
-    char *cstr = rb_string_value_ptr(&(obj)); 
-    #else
+    %#if defined(StringValuePtr)
+    char *cstr = StringValuePtr(obj); 
+    %#else
     char *cstr = STR2CSTR(obj);
-    #endif
+    %#endif
     size_t size = RSTRING_LEN(obj) + 1;
     if (cptr)  {
       if (alloc) {