Please backport glpk 4.57-1build2 (universe) from xenial

[Andrew newman]

Please backport glpk 4.57-1build2 (universe) from xenial to trusty.

Reason for the backport:
========================
There is a bug prior to 4.54 that causes glpk to crash:
http://lists.gnu.org/archive/html/bug-glpk/2014-04/msg00001.html

Testine:
========
Mark off items in the checklist [X] as you test them, but please leave the checklist so that backporters can quickly evaluate the state of testing.

You can test-build the backport in your PPA with backportpackage:
$ backportpackage -u ppa:<lp username>/<ppa name> -s xenial -d trusty glpk

* trusty:
[ ] Package builds without modification
[ ] libglpk36 installs cleanly and runs
[ ] libglpk-dev installs cleanly and runs
[ ] glpk-utils-dbgsym installs cleanly and runs
[ ] libglpk36-dbgsym installs cleanly and runs
[ ] glpk-doc installs cleanly and runs
[ ] libglpk36-dbg installs cleanly and runs
[ ] libglpk-dev-dbgsym installs cleanly and runs
[ ] glpk-utils installs cleanly and runs

Reverse dependencies:
=====================
The following reverse-dependencies need to be tested against the new version of glpk. For reverse-build-dependencies (-Indep), please test that the package still builds against the new glpk. For reverse-dependencies, please test that the version of the package currently in the release still works with the new glpk installed. Reverse- Recommends, Suggests, and Enhances don't need to be tested, and are listed for completeness-sake.

libglpk36
---------
* libstarpu-1.1-4
  [ ] trusty (Reverse-Depends)
* r-cran-rglpk
  [ ] trusty (Reverse-Depends)
* feel++-apps
  [ ] trusty (Reverse-Depends)
* libglpk-java
  [ ] trusty (Reverse-Depends)
* python-cvxopt
  [ ] trusty (Reverse-Depends)
* libshogun15
  [ ] trusty (Reverse-Depends)
* libstarpu-contrib-1.1-4
  [ ] trusty (Reverse-Depends)
* libfeel++1
  [ ] trusty (Reverse-Depends)
* octave
  [ ] trusty (Reverse-Depends)
* python-glpk
  [ ] trusty (Reverse-Depends)
* gnunet-server
  [ ] trusty (Reverse-Depends)
* libopenms1.11
  [ ] trusty (Reverse-Depends)

libglpk-dev
-----------
* feel++
  [ ] trusty (Reverse-Build-Depends)
* cvxopt
  [ ] trusty (Reverse-Build-Depends)
* starpu
  [ ] trusty (Reverse-Build-Depends)
* libfeel++-dev
  [ ] trusty (Reverse-Depends)
* shogun
  [ ] trusty (Reverse-Build-Depends)
* glpk-java
  [ ] trusty (Reverse-Build-Depends)
* igraph
  [ ] trusty (Reverse-Build-Depends)
* octave
  [ ] trusty (Reverse-Build-Depends)
* rglpk
  [ ] trusty (Reverse-Build-Depends)
* openms
  [ ] trusty (Reverse-Build-Depends)
* science-mathematics-dev
  [ ] trusty (Reverse-Recommends)
* gnunet
  [ ] trusty (Reverse-Build-Depends)
* python-glpk
  [ ] trusty (Reverse-Build-Depends)
* starpu-contrib
  [ ] trusty (Reverse-Build-Depends)

glpk-utils-dbgsym
-----------------

libglpk36-dbgsym
----------------

glpk-doc
--------

libglpk36-dbg
-------------

libglpk-dev-dbgsym
------------------

glpk-utils
----------
* zimpl
  [ ] trusty (Reverse-Suggests)