master updated (1d08e48020 -> 1c1aaa0ecd)

[Philip Kaludercic]

zge pushed a change to branch master.

      from  1d08e48020 Improve some shell highlight doc strings
       new  f31b9d86a6 Add new command 'toggle-theme'
       new  b4dbf7184c Add new user option 'custom-ensure-single-theme'
       new  1c1aaa0ecd ; Use US spelling docstring


Summary of changes:
 doc/emacs/custom.texi           |  5 +++++
 etc/NEWS                        | 11 +++++++++++
 etc/themes/leuven-dark-theme.el |  4 +++-
 etc/themes/leuven-theme.el      |  4 +++-
 etc/themes/tango-dark-theme.el  |  2 ++
 etc/themes/tango-theme.el       |  2 ++
 etc/themes/tsdh-dark-theme.el   |  2 ++
 etc/themes/tsdh-light-theme.el  |  2 ++
 lisp/cus-theme.el               |  2 ++
 lisp/custom.el                  | 31 +++++++++++++++++++++++++++++++
 lisp/vc/diff-mode.el            |  2 +-
 11 files changed, 64 insertions(+), 3 deletions(-)