Raise thresholds for declaring bootstrapping complete.

This patch changes the total serverdesc threshold from 25% to 75%
and the exit threshold from 33% to 50%.  The goal is to make
initially constructed circuits less horrible, and to make initial
less awful (since fetching directory information in parallel with
whatever the user is trying to do can hurt their performance).

Implements ticket 3196.

1 files changed, 7 insertions, 0 deletions

diff --git a/changes/bug3196 b/changes/bug3196
new file mode 100644
index 000000000..932102267
--- /dev/null
+++ b/changes/bug3196
@@ -0,0 +1,7 @@
+  o Minor features:
+    - Raise the threshold of server descriptors needed (75%) and exit
+      server descriptors needed (50%) before we will declare ourselves
+      bootstrapped. This will make clients declare completion a little
+      later, but makes the initially constructed circuits less weird
+      and less in conflict with directory connections. Fixes ticket
+      #3196.