Fix for issue #693
  - Made changes to read and fetch code object from .pyc files.
  - Error message "Non-ASCII character '\xf3' in file" is resolved.
  Fix for issue #693
  - Override older behavior of execfile_ with one with pyc patch
	Fix for issue #693
	- Remodeled the logic to use imp module to validate the python
	  gunicorn config file
	Fix for issue #693
	- Added changes to file read, as per review comments
Merge pull request #696 from jerynmathew/fix/693-config-pyc

Fix for #693