uncrumple settings window

to full size right away with no need to manually enlarge it
900 wide, less than 1024x78

src/bitmessageqt/settings.py

@@ -42,7 +42,10 @@ class SettingsDialog(QtGui.QDialog):
             self.tabWidgetSettings.setCurrentIndex(
                 self.tabWidgetSettings.indexOf(self.tabNetworkSettings)
             )
-        QtGui.QWidget.resize(self, QtGui.QWidget.sizeHint(self))
+        QtGui.QWidget.setMinimumSize(self, QtCore.QSize(900, 555))
+        QtGui.QWidget.setMaximumSize(self, QtCore.QSize(900, 555))
+        QtGui.QWidget.setBaseSize(self, QtCore.QSize(900, 555))
+        QtGui.QWidget.resize(self, 900, 555)
 
     def adjust_from_config(self, config):
         """Adjust all widgets state according to config settings"""