Givaro's (3.2.13.rc1) C++ headers don't conform to C++11

Imported from <a href="http://trac.sagemath.org/sage_trac/ticket/12761">trac #12761</a>.

Diff between leif's 3.2.13.rc1.p4 and my 3.2.13.p0 spkg. For reference / review only.

Reported by: leif

Component: packages

CC: cpernet,, malb,, mariah

Report Upstream: N/A

Authors: Leif Leonhardy, Jeroen Demeyer

Dependencies: 

Work issues: 

Reviewers: Karl-Dieter Crisman, Jeroen Demeyer

Merged in: sage-5.0.1.rc1

Attachments: <ol><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/12761/givaro-3.2.13.rc1.p3-p4.diff">givaro-3.2.13.rc1.p3-p4.diff: Diff between the previous spkg in Sage and my new p4 spkg. For reference / review only.</a> by leif at 20120327T19:46:11</li><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/12761/12761_givaro_depends.patch">12761_givaro_depends.patch: </a> by jdemeyer at 20120525T23:27:04</li><li><a href="http://trac.sagemath.org/sage_trac/attachment/ticket/12761/givaro-3.2.13.p0.diff">givaro-3.2.13.p0.diff: Diff between leif's 3.2.13.rc1.p4 and my 3.2.13.p0 spkg. For reference / review only.</a> by jdemeyer at 20120526T01:47:13</li></ol>