Merge copy ctor bug reported by Richard Sim.

Update ChangeLog.

ChangeLog

@@ -1,7 +1,10 @@
+NVIDIA Texture Tools version 2.0.2
+ * Fix copy ctor error reported by Richard Sim.
+
 NVIDIA Texture Tools version 2.0.1
  * Fix memory leaks.
  * Pre-allocate device memory for CUDA compressor.
- * Add single color compressor.
+ * Add single color compressor. Thanks to Amir Ebrahimi.
  * Better CUDA error checking.
 
 NVIDIA Texture Tools version 2.0.0

src/nvimage/Image.cpp

@@ -15,7 +15,7 @@ Image::Image() : m_width(0), m_height(0), m_format(Format_RGB), m_data(NULL)
 {
 }
 
-Image::Image(const Image & img)
+Image::Image(const Image & img) : m_data(NULL)
 {
 	allocate(img.m_width, img.m_height);
 	m_format = img.m_format;