Please sync libx11 1.1.5-1 from Debian unstable

This is a bugfix release which is part of X.Org 7.4. Debian changelog:

 libx11 (2:1.1.5-1) unstable; urgency=low

   [ Brice Goglin ]
   * Add upstream URL to debian/copyright.
   * Add a link to www.X.org and a reference to the upstream module
     in the long description.

   [ Timo Aaltonen ]
   * New upstream release.
     + adds missing <cedilla> Compose sequences (closes: #394068)

   [ Julien Cristau ]
   * 014_add_Khmer_digraphs.diff: remove, applied upstream
   * 006_tailor_pt_BR.UTF-8_Compose.diff: update

 -- Julien Cristau <email address hidden> Sun, 14 Sep 2008 19:09:33 +0200

And the upstream changes:

Adam Jackson (1):
      Bug #15884: Remove useless sleep()'s from the connection code.

Alan Coopersmith (2):
      Fix mismatched brace indenting
      Update ac_define_dir macro in acinclude.m4 to 2008-04-12 version

Bart Massey (1):
      added error check in Xcms color file parser; closes bug #15305

Christian Weisgerber (1):
      ConnDis: properly cast 'addr' before accessing it as a byte array.

Colin Harrison (3):
      Fix typo
      Xlib warning fixes
      Fix missing error condition

Daniel Stone (4):
      configure.ac: Don't search for legacy X11 headers
      NLS: Make UTF-8 the default for Russian
      gitignore: Update with loads more bits from server
      Update to 1.1.5

James Cloos (5):
      Add some dead_key sequences to en_US.UTF-8 Compose table
      Fix commit 21e464ec682ab23ba20ddf6bd72c6db214cfbe01
      Add <Multi_key> <cedilla> Compose tuples
      Work on making the en_US and pt_BR UTF-8 Compose as similar as possible.
      Add more <Multi_key> <cedilla> Compose tuples

Jens Herden (1):
      NLS: Add Khmer compose sequences (bug #5706)

Josh Triplett (1):
      Fix fd.o bug 15023: make Xlib sync correctly given many void requests

Khaled Hosny (1):
      NLS: Add Arabic Lam-Alef ligature compose sequences (bug #16426)

Matthieu Herrb (1):
      nuke RCS Ids

Ross Burton (1):
      NLS: Add interrobang to UTF-8 compose tables (bug #15653)

Teemu Likonen (1):
      Change <dead_belowdot> to <dead_belowring> for U+1E00 and U+U1E01

Theppitak Karoonboonyanan (1):
      IM: Respect XMODIFIERS for Thai locale (bug #15719)