add icon for app bundle in mac os x

Change-Id: Id9ed842e36d33f06669e4420272ff2668c328087
diff --git a/osx/osxdist.py b/osx/osxdist.py
index 0291460..8925b5c 100644
--- a/osx/osxdist.py
+++ b/osx/osxdist.py
@@ -378,9 +378,9 @@
   a = AppBundle('ChronoShare.app', ver)
   a.copy_qt_plugins()
   a.handle_libs()
-  a.copy_resources(['../gui/images', '../gui/html', '../osx/qt.conf', '../osx/dsa_pub.pem'])
+  a.copy_resources(['../chronoshare.icns', '../gui/images', '../gui/html', '../osx/qt.conf', '../osx/dsa_pub.pem'])
   a.update_plist()
-  a.set_min_macosx_version('10.6.0')
+  a.set_min_macosx_version('10.8.0')
   a.done()
 
   # Sign our binaries, etc.