[geany/geany] 8f280e: New --read-only commandline option

[Thomas Martitz]

  Branch: refs/heads/master
  Home:   https://github.com/geany/geany

  Commit: 8f280ed884721a0a1c75462e428b9bcffb3ac527
      https://github.com/geany/geany/commit/8f280ed884721a0a1c75462e428b9bcffb3ac527
  Author: Thomas Martitz <thomas.martitz at student.htw-berlin.de>
  Date:   2011-11-17 (Thu, 17 Nov 2011)

  Changed paths:
    M doc/geany.html
  M doc/geany.txt
  M src/document.c
  M src/main.c
  M src/main.h
  M src/socket.c

  Log Message:
  -----------
  New --read-only commandline option

This adds a new commandline option --read-only (or -r). It's implemented
according to the behavior agreed on on the mailing list:

--read-only applies to all files on the command line
irrespective of positioning and has no effect on any other files
opened by session or menu (...)

Current behaviour on attempting to re-open a file with different
read-only status is that nothing happens, the already open
file is raised but not changed. (...)