Bump MODULE_VERSION to 5.1.1

Change-Id: I6205b457518ec78566c927eb6429e0b8513c72ba
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Merge remote-tracking branch 'origin/release' into stable

Change-Id: Ic0daef1ae2cd8d9dc9e4e1597d730a42ad00c7b1
[V8] Fix stack alignment corruption for MinGW32 build

BUG: https://bugreports.qt-project.org/browse/QTBUG-31396

Change-Id: Ibf815ab7c1f679b01b347f7141d269a220657968
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Merge remote-tracking branch 'origin/release' into stable

Change-Id: I0f02afa89f6f97bd8685ad525315df8736731a5e