Massive overhaul of "generate project" feature

previous incarnation was woefully lacking.  new feature is much more
extensible.  still need to remove old POS integration specifics in
some places.

and a couple of unrelated things that snuck in..

- deprecate `rattail.util.OrderedDict`
- deprecate `rattail.util.import_module_path()`
- deprecate `rattail.util.import_reload()`

tailbone/views/master.py

@@ -32,6 +32,7 @@ import getpass
 import shutil
 import tempfile
 import logging
+from collections import OrderedDict
 
 import json
 import sqlalchemy as sa
@@ -41,7 +42,7 @@ from sqlalchemy_utils.functions import get_primary_keys, get_columns
 
 from rattail.db import model, Session as RattailSession
 from rattail.db.continuum import model_transaction_query
-from rattail.util import prettify, OrderedDict, simple_error
+from rattail.util import prettify, simple_error, get_class_hierarchy
 from rattail.time import localtime
 from rattail.threads import Thread
 from rattail.csvutil import UnicodeDictWriter
@@ -268,17 +269,7 @@ class MasterView(View):
         return labels
 
     def get_class_hierarchy(self):
-        hierarchy = []
-
-        def traverse(cls):
-            if cls is not object:
-                hierarchy.append(cls)
-                for parent in cls.__bases__:
-                    traverse(parent)
-
-        traverse(self.__class__)
-        hierarchy.reverse()
-        return hierarchy
+        return get_class_hierarchy(self.__class__)
 
     def set_row_labels(self, obj):
         labels = self.collect_row_labels()
@@ -2215,8 +2206,9 @@ class MasterView(View):
         """
         Returns the master view's index URL.
         """
-        route = self.get_route_prefix()
-        return self.request.route_url(route, **kwargs)
+        if self.listable:
+            route = self.get_route_prefix()
+            return self.request.route_url(route, **kwargs)
 
     # TODO: this should not be class method, if possible
     # (pretty sure overriding as instance method works fine)