[sailfish-browser] Scale toolbar height and engine parameters by Theme.pixelRatio
Merge pull request #243 from antseppa/scalebytheme

[sailfish-browser] Scale toolbar height and engine parameters by Theme.p...
[sailfish-browser] Remove hard dependency to Silica Theme
Merge pull request #251 from antseppa/nodep

[sailfish-browser] Remove hard dependency to Silica Theme
Better guarding for screenshot grabbing

If the page is not active do not allow grabbing.
[sailfish-browser] Fix failing WebView unit test
Merge pull request #252 from rainemak/fixFailingUnitTest

Fix failing unit test
[sailfish-browser] Add a custom cover when no tabs