master updated (52a7f405 -> c0c95563)

[Ikumi Keita]

ikumi pushed a change to branch master.

      from  52a7f405  ; * doc/auctex.texi (Adding Environments): Adjust 
indentation.
       new  21e62402  Improve support for TikZ
       new  316550f0  Fix `ConTeXt-add-environments'
       new  c0c95563  Don't insert empty node name


Summary of changes:
 context-en.el |  5 ++++-
 context-nl.el |  5 ++++-
 context.el    | 25 ++++++++++++---------
 style/tikz.el | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++-------
 tex.el        | 12 ++++++----
 5 files changed, 93 insertions(+), 25 deletions(-)