Minor bugfixes and prepare for distutils script

	modified:   PythonImage.py
	modified:   gtkw/GtkHelp.py
	modified:   gtkw/plugins/Log.py
	new file:   misc/__init__.py
	new file:   misc/plugins/__init__.py
	modified:   qtw/GingaQt.py
	modified:   qtw/QtHelp.py
	modified:   util/make_release.py
Initial cut at making a properly distutils2 installable module

  - you can now run "python setup.py build" or "python setup.py install"
      to install Ginga on your system
  - installs a python package called "ginga" in the python library
Fixes to distutils script
Reorganized examples, fixes to setup.py script
Updated README and email address