Updates to various files, replacing delete calls with osgDelete so that

greater debugging info can be gleaned.

src/osgDB/FieldReaderIterator.cpp

@@ -34,16 +34,16 @@ void FieldReaderIterator::_free()
     // free all data
     if (_previousField)
     {
-        delete _previousField;
+        osgDelete _previousField;
     }
     if (_fieldQueue)
     {
         for(int i=0;i<_fieldQueueCapacity;++i)
         {
-            if (_fieldQueue[i]) delete _fieldQueue[i];
+            if (_fieldQueue[i]) osgDelete _fieldQueue[i];
             _fieldQueue[i] = NULL;
         }
-        delete [] _fieldQueue;
+        osgDelete [] _fieldQueue;
     }
     _init();
 
@@ -258,7 +258,7 @@ FieldReaderIterator& FieldReaderIterator::operator += (int no)
         {
             _fieldQueue[_fieldQueueSize+i] = tmpFields[i];
         }
-        delete [] tmpFields;
+        osgDelete [] tmpFields;
     }
     return *this;
 }

src/osgDB/FileUtils.cpp

@@ -294,7 +294,7 @@ char *osgDB::findDSO( const char *name )
     strcat(prependosgPlugins,name);
 
     fileFound = findFileInPath( prependosgPlugins , path );
-    delete [] prependosgPlugins;
+    osgDelete [] prependosgPlugins;
 
     return fileFound;
 #else // defined macintosh

src/osgDB/Registry.cpp

@@ -25,7 +25,7 @@ class RegistryPtr
         RegistryPtr() : _ptr(0L) {}
         RegistryPtr(Registry* t): _ptr(t) {}
         RegistryPtr(const RegistryPtr& rp):_ptr(rp._ptr) { }
-        ~RegistryPtr() { if (_ptr) delete _ptr; _ptr=0L; }
+        ~RegistryPtr() { if (_ptr) osgDelete _ptr; _ptr=0L; }
 
         inline Registry* get() { return _ptr; }