Merge tag '0.28.2'

notmuch 0.28.2 release

diff --cc NEWS
index d46035cd080d121b40f0d60e9731586f34041bd7,e469ba063c63a31727d668d951f92f709ddd5a03..2a69b0be5206bf8d59b0057d53888999dd84a4b6
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -1,12 -1,17 +1,26 @@@
 +Notmuch 0.29 (UNRELEASED)
 +=========================
 +
 +Command Line Interface
 +----------------------
 +
 +`notmuch show` now supports --body=false and --include-html with
 +--format=text
 +
+ Notmuch 0.28.2 (2019-02-17)
+ ===========================
+ 
+ Emacs
+ -----
+ 
+ Invoke gpg with --batch and --no-tty.
+ 
+ Python Bindings
+ ---------------
+ 
+ Fix documentation build with Python 3.7. Note that Python >= 3.3 is
+ now needed to build this documentation.
+ 
  Notmuch 0.28.1 (2019-02-01)
  ===========================