Merge tag '0.20.2'

notmuch 0.20.2 release

Conflicts:
	NEWS

diff --cc NEWS
index 004b8677018d90a9224afb88b1674b026c45171d,cc8d7edf2432dc804e06dd3c69669e2acfea8acc..e474e53ed7d5b99eae1a62d0442b6bbb4b9c7d36
--- 1/NEWS
--- 2/NEWS
+++ b/NEWS
@@@ -1,11 -1,10 +1,18 @@@
 +Notmuch 0.21 (UNRELEASED)
 +=========================
 +
 +Library
 +-------
 +
 +The use of absolute paths is now enforced when calling notmuch_database_{open, create}
 +
+ Notmuch 0.20.2 (2015-06-27)
+ ===========================
+ 
+ Emacs Interface
+ ---------------
+ 
+ Bug fix for marking messages read in `notmuch-tree` mode.
  
  Notmuch 0.20.1 (2015-06-01)
  ===========================