Issue 113: add a Ghost.open_nowait() API
Revert "Issue 113: add a Ghost.open_nowait() API"

This reverts commit 63b916f011089eeb79e6adc819c3aad51b60b81e.
Issue 113, try 2: add a 'wait' parameter to Ghost.open()
make QNetworkDiskCache optional by setting cache_dir=None
Merge pull request #114 from gjcarneiro/open_nowait

Issue 113: add a Ghost.open_nowait() API
add exception handling for UnicodeDecodeError
Merge pull request #131 from kravietz/master

add exception handling for UnicodeDecodeError
allow *not* to use cache
Merge branch 'develop' of github.com:kravietz/Ghost.py
fix content logic if no cache
Merge branch 'develop' of github.com:kravietz/Ghost.py
yet another fix if no cache
Fixes HttpResource pep8
Enforces to always instanciate a QWebView
Improves Ghost.__init__.py readability
Fixes a pep8 typo
Improves the way we import Qt bindings
Merge branch 'develop' of git://github.com/kravietz/Ghost.py into kravietz-develop
Merge branch 'dev' into kravietz-develop
Fixes ghost.py pep8