New pca workflow and datset updates

fluent

@@ -19,6 +19,7 @@ import logger
 import plots
 import navigator
 import go_workflow
+import pca_workflow
 import scipy
 
 PROGRAM_NAME = 'fluent'
@@ -45,7 +46,8 @@ class FluentApp:
         self.current_data = None
         gtk.glade.set_custom_handler(self.custom_object_factory)
         self.widget_tree = gtk.glade.XML(GLADEFILENAME, 'appwindow')
-        self.workflow = go_workflow.EinarsWorkflow(self)
+        self.workflow = pca_workflow.PCAWorkflow(self)
+        self.workflow.add_project(self.project)
 
     def custom_object_factory(self, glade, function_name, widget_name,\
                               str1, str2, int1, int2):