master updated (9d10a8c -> 6593d73)

[Stefan Kangas]

skangas pushed a change to branch master.

      from  9d10a8c   Tweak background colours in shr when there's indentation
       new  2c28488   * lisp/play/tetris.el: Use lexical-binding.
       new  87b4368   Remove some XEmacs compat code from gamegrid.el
       new  be2ef62   Various life.el improvements
       new  6593d73   Use lexical-binding in life.el and add tests


Summary of changes:
 lisp/play/gamegrid.el        |  7 +---
 lisp/play/life.el            | 88 ++++++++++++++++++++++++++++++++++----------
 lisp/play/tetris.el          |  2 +-
 test/lisp/play/life-tests.el | 80 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 150 insertions(+), 27 deletions(-)
 create mode 100644 test/lisp/play/life-tests.el