Merge tag '0.20.2'

notmuch 0.20.2 release

Conflicts:
	NEWS

diff --combined 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)
  ===========================
@@@ -2768,7 -2767,7 +2775,7 @@@ New 'G' key binding to trigger mail ref
  
    The 'G' key works wherever '=' works. Before refreshing the screen
    it calls an external program that can be used to poll email servers,
 -  run notmuch new and setup specific tags for the new emails. The
 +  run notmuch new and set up specific tags for the new emails. The
    script to be called should be configured with the "Notmuch Poll
    Script" setting in the customize interface. This script will
    typically invoke "notmuch new" and then perhaps several "notmuch