Add Code Climate badge
Make sure nodes hidden with css rule `visibility: hidden` returns false on `visible?`
Fix issues with Qt 4.8
Status code and headers are wrong after redirect
Read status and headers from response after load
Render non-HTML content when reply emits finished
Use old method to find current URL in Qt < 4.8.0
Revert "Add configurable timeouts to commands."

This reverts commit da93136a9c6fab730706a6d86b3b11f263b6046f.

Conflicts:
	src/TimeoutCommand.cpp
Revert "Revert "Add configurable timeouts to commands.""

This reverts commit b1b3a4c390031a47e74a35eae0a7a6eebb7697e7.
Remove m_commandWaiting and add logging to TimeoutCommand
Set URL to about:blank on WebPage initialization
Disconnect signals from TimeoutCommand after fired
Merge pull request #398 from thoughtbot/gbw-code-climate-badge

Add Code Climate badge
Update the NEWS file
Bump to 0.13.0
Update news for release
Update author list
Document #header method
Add test coverage for #within_frame
* Make sure focus is returned to parent
Update README to indicate required version of Qt