master updated (9aa6b5b -> 9bcdebd)

[Eric Abrahamsen]

girzel pushed a change to branch master.

      from  9aa6b5b   * lisp/progmodes/tcl.el: Use lexical-binding
       new  7fad12c   New gnus-search library
       new  0328b21   Move nnir.el to lisp/obsolete
       new  9bcdebd   Remove gmane search engine


Summary of changes:
 doc/misc/gnus.texi                  |  598 +++++-----
 etc/NEWS                            |    8 +-
 lisp/gnus/gnus-group.el             |   68 +-
 lisp/gnus/gnus-search.el            | 2156 +++++++++++++++++++++++++++++++++++
 lisp/gnus/nnselect.el               |   91 +-
 lisp/{gnus => obsolete}/nnir.el     |    0
 test/lisp/gnus/gnus-search-tests.el |   96 ++
 7 files changed, 2603 insertions(+), 414 deletions(-)
 create mode 100644 lisp/gnus/gnus-search.el
 rename lisp/{gnus => obsolete}/nnir.el (100%)
 create mode 100644 test/lisp/gnus/gnus-search-tests.el