Merge branch 'sysroot'

Merge branch 'sysroot'

* sysroot:
  Add ChangeLog entries for the sysroot branch.
  fix AIX testsuite regression
  fix --mode=finish
  improve code for sysroot --mode=finish
  add libtool --mode=finish mode for sysroot
  reorganize parsing of --mode=finish arguments
  fix sysroot handling for deplibs of preopened libtool libs
  fix sysroot tests to pass on Fedora 13
  initial version of the NEWS entry
  add sysroot test
  emit sysrooted paths when installing .la files
  process postdeps to include sysrooted paths
  handle sysrooted paths when reading dependencies to la files
  teach libtool -L= and -R=
  add --with-sysroot
  handle sysroot flags