Don't assume 'grep' supports GREP_OPTIONS.

The GREP_OPTIONS environment variable is planned to be marked
obsolescent in GNU grep, due to problems in its use, so stop
relying on it.
* progmodes/grep.el (grep-highlight-matches): Document this.
(grep-process-setup): Do not set GREP_OPTIONS.
(grep-compute-defaults): Use an explicit --color option if supported.
Add interpreter-mode-alist support for various JavaScript interpreters.

* progmodes/js.el: here.
* alloc.c (local_vector_init): Remove useless INLINE.
Ignore files and fix indentation of else static if in d-mode
Emacs compiles after porting changes from http://cx4a.org/repo/emacs.bzr/regexp
Add flag compilation-do-echo-command
Merge branch 'addons' of https://github.com/nordlow/emacs into addons