#348 taurusgui --new-gui errors

[Zbigniew Reszela]

This error appears when creating a new gui from scratch and selecting an option to connect to the sardana system (select a MacroServer and a Door)

Traceback (most recent call last):
  File "/taurus/lib/taurus/qt/qtgui/taurusgui/appsettingswizard.py", line 79, in valueChanged
    self.valueChanged.emit(self._actualValue, not self._actualValue)
AttributeError: 'function' object has no attribute 'emit'

And this error appears at the end of the wizard when exporting to the XML.

Traceback (most recent call last):
  File "/taurus/lib/taurus/qt/qtgui/taurusgui/appsettingswizard.py", line 1288, in initializePage
    xml, substitutions = self.wizard().generateXml()
  File "/taurus/lib/taurus/qt/qtgui/taurusgui/appsettingswizard.py", line 1597, in generateXml
    if SARDANA_INSTALLED and self.__getitem__("macroServerName"):
NameError: global name 'SARDANA_INSTALLED' is not defined

[Carlos Falcon]

A PR has been created.