TST switch to py.test and explicit fixtures
TST skip tests properly; don't use pytest-xdist on travis
remove commented out code
Moved QApp related code to qtutils.py file.
Desktop geometry set to created QWebView instance.
Merge pull request #116 from sardok/web-view-geometry-inheritance

Web view geometry inheritance.
log viewport size changes
Revert "Desktop geometry set to created QWebView instance."

This reverts commit 81db0e3390b66536dee6a4ae65da4be7099176ce.
Merge pull request #115 from scrapinghub/pytest

[MRG] switch to pytest
cleanup: simplify parameter handling code by using keyword arguments
cleanup: use dicts more consistently
cleanups
cleanup for doRequest methods of WebpageRender subclasses
fail earlier in case of exceptions in doRequest
rename doRequest to start
allow to pass headers to WebpageRender explicitly
allow to pass http method and request body to WebpageRender
fixed "wait" in UI
track more classes in /debug
more proxy vs proxy server renames