Fix bug where API assumed survey choices were list

Applies to both single-select and multi-select type questions.
UI sends choices in the form of text with line breaks
separating the options.
Customer complained about empty string erronously sent by
the UI being passed to playbook, which is a component of this.

awx/main/tests/factories/tower.py

@@ -135,13 +135,15 @@ def create_survey_spec(variables=None, default_type='integer', required=True):
     argument specifying variable name(s)
     '''
     if isinstance(variables, list):
-        name = "%s survey" % variables[0]
-        description = "A survey that starts with %s." % variables[0]
         vars_list = variables
     else:
-        name = "%s survey" % variables
-        description = "A survey about %s." % variables
         vars_list = [variables]
+    if isinstance(variables[0], basestring):
+        slogan = variables[0]
+    else:
+        slogan = variables[0].get('question_name', 'something')
+    name = "%s survey" % slogan
+    description = "A survey that asks about %s." % slogan
 
     spec = []
     index = 0