Only set the focus to the active widget if it really is focusable
Corrected width in Widget._getHeightForWidth when layout.hasHeightForWidth is true
Merge pull request #104 from level420/master

[BUG #8668] Error on closing qx.ui.core.Blocker when previous active widget is not focusable
[BUG #8691] Initialized the matchMedia polyfill on defer and removed all window context parameters.
[BUG #8691] Fixed unit tests.
[Bug #8660]name of  member variable changed
[BUG #8691] Skip MatchMedia unit tests on debug version.
Typos in qx.io.request.Xhr
Merge pull request #108 from stefanand/typos

Removed typos
Merge pull request #106 from willpritchard/master

[BUG #8683] Corrected width in Widget._getHeightForWidth when layout.hasHeightForWidth is true
[BUG #8661] Make sure to return the old instance
[BUG #8709] Add 2nd parameter override to qxWeb.$attach to allow collection method overriding
[Bug #8701] qx.bom.element.Style.get mistakenly used. RegExp for linear gradient extended to take FF and IE in account.
[Bug #8702] Related to bug 8679 we have to prevent replacing oapacity value of 1 to empty string for mshtml browser, too.
[BUG #8628] add 'qxWeb.env.get' to environment call detection
[BUG #8709] Change argument default to false that the common consistency doesn't break
Fixed whitespaces
Minor test plan adjustment
[BUG #7877] Removed deprecated code
Increase cache revision