master updated (4287d56bad5 -> 5642bf0b972)

[Jim Porter]

jporter pushed a change to branch master.

      from  4287d56bad5 Repair hideif regexp problems
       new  dabe0b7d407 Add support for negative indices and index ranges in 
Eshell
       new  5642bf0b972 Make 'eshell-number-regexp' into a regular defvar


Summary of changes:
 doc/misc/eshell.texi               |  28 +++++---
 etc/NEWS                           |   7 ++
 lisp/eshell/esh-util.el            |  23 +++++--
 lisp/eshell/esh-var.el             | 136 ++++++++++++++++++++++++-------------
 test/lisp/eshell/esh-util-tests.el |  65 ++++++++++++++++++
 test/lisp/eshell/esh-var-tests.el  | 102 +++++++++++++++++++++-------
 6 files changed, 274 insertions(+), 87 deletions(-)