Overhaul desktop views for receiving, for efficiency

still could use even more i'm sure, but this takes advantage of buefy
to add dialogs etc. from the "view receiving batch row" page.  this
batch no longer allows direct edit of rows but that's hopefully for
the better.

tailbone/views/batch/core.py

@@ -115,7 +115,9 @@ class BatchMasterView(MasterView):
 
     def __init__(self, request):
         super(BatchMasterView, self).__init__(request)
-        self.handler = self.get_handler()
+        self.batch_handler = self.get_handler()
+        # TODO: deprecate / remove this (?)
+        self.handler = self.batch_handler
 
     @classmethod
     def get_handler_factory(cls, rattail_config):
@@ -1149,18 +1151,27 @@ class BatchMasterView(MasterView):
         """
         Batch rows are editable only until batch is complete or executed.
         """
+        if not (self.rows_editable or self.rows_editable_but_not_directly):
+            return False
+
         batch = self.get_parent(row)
-        return self.rows_editable and not batch.executed and not batch.complete
+        if batch.complete or batch.executed:
+            return False
+
+        return True
 
     def row_deletable(self, row):
         """
         Batch rows are deletable only until batch is complete or executed.
         """
-        if self.rows_deletable:
-            batch = self.get_parent(row)
-            if not batch.executed and not batch.complete:
-                return True
-        return False
+        if not self.rows_deletable:
+            return False
+
+        batch = self.get_parent(row)
+        if batch.complete or batch.executed:
+            return False
+
+        return True
 
     def template_kwargs_view_row(self, **kwargs):
         kwargs['batch_model_title'] = kwargs['parent_model_title']