still using tty progressbar when we don't have a tty

[John A Meinel]

When we upgraded to nested progress bars, we lost the ability to create a dots progress bar instead of a tty.
This patch fixes this, but needs a test case.
=== modified file 'bzrlib/progress.py'
--- bzrlib/progress.py 2006-06-21 02:33:40 +0000
+++ bzrlib/progress.py 2006-06-27 13:12:33 +0000
@@ -93,7 +93,7 @@
         self._show_count = show_count
         self._to_messages_file = to_messages_file
         self._stack = []
- self._klass = klass or TTYProgressBar
+ self._klass = klass or ProgressBar

     def top(self):
         if len(self._stack) != 0:

[John A Meinel (jameinel)]

cleanup-progress branch.

[John A Meinel (jameinel)]

Default is selected based on 'isatty'. Can be forced with env var BZR_PROGRESS_BAR