Emacs interface (notmuch.el)
----------------------------
+Enhance '+' and '-' in the search view to operate on an entire region
+if set.
+
+Fix '*' to work by simply calling '+' or '-' on a region consisting of
+the entire buffer.
+
Add a global keybinding table for notmuch, and then view-specific
tables that add to it.
notmuch command-line tool
-------------------------
+Implement "notmuch search --exclude-threads=<search-terms>" to allow
+for excluding muted threads, (and any other negative, thread-based
+filtering that the user wants to do).
+
Fix "notmuch show" so that the UI doesn't fail to show a thread that
is visible in a search buffer, but happens to no longer match the
current search. (Perhaps add a --matching=<secondary-search-terms>