Merge branch 'maint'

* maint:
  Prepare for 1.8.1.1
  Makefile: detect when PYTHON_PATH changes (cherry-picked)

Author: gitster

Documentation/RelNotes/1.8.1.1.txt

@@ -0,0 +1,36 @@
+Git 1.8.1.1 Release Notes
+=========================
+
+Fixes since v1.8.1
+------------------
+
+ * After failing to create a temporary file using mkstemp(), failing
+   pathname was not reported correctly on some platforms.
+
+ * http transport was wrong to ask for the username when the
+   authentication is done by certificate identity.
+
+ * After "git add -N" and then writing a tree object out of the
+   index, the cache-tree data structure got corrupted.
+
+ * "git pack-refs" that ran in parallel to another process that
+   created new refs had a race that can lose new ones.
+
+ * When a line to be wrapped has a solid run of non space characters
+   whose length exactly is the wrap width, "git shortlog -w" failed
+   to add a newline after such a line.
+
+ * "gitweb", when sorting by age to show repositories with new
+   activities first, used to sort repositories with absolutely
+   nothing in it early, which was not very useful.
+
+ * Some scripted programs written in Python did not get updated when
+   PYTHON_PATH changed.
+
+ * We have been carrying a translated and long-unmaintained copy of an
+   old version of the tutorial; removed.
+
+ * Portability issues in many self-test scripts have been addressed.
+
+
+Also contains other minor fixes and documentation updates.