New PARI stable release 2.3.5

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

Dear PARI-lovers,

PARI/GP 2.3.5 (stable) has just been released.
This is a bugfix-only release the the stable branch 2.3.
It is available for download at
<http://pari.math.u-bordeaux.fr/download.html>
as usual.

Thanks to all the testers of the prereleases.

Unfortunately, we do not have the resource to provide a Windows binary for this
release.

Changelog:

[last column crossreferences current development release 2.4.3]
  Fixed
    1- was not handling nffactor(*huge degree* nf, *non-monic* t_POL) properly
     --> wrong result and possible memory corruption [#870]              [F96]
    2- quadclassunit(-3 or -4): incorrect format (extra component).
BA  3- Fix detection of ppc64 running in 32bit mode.                     [F107]
    4- wrong results in matsnf with t_POL entries [#901]                 [F110]
       minpoly(matrix(4,4,i,j,i/j)) -> x^3 - 4*x^2 + x
    5- bnfisintnorm(bnfinit(x^2-5), -180): result not reduced mod x^2-5 [#904]
    6- Y;A; intformal(A,Y)                                               [F114]
    7- typo in RgXQX_divrem: random results if the input contains
       unexpected scalar types, as in [#908]
    8- ispower broken due to insufficient precision [#916]                [F40]
    9- [2;2]*[[1,0],[1,2]] -> SEGV
   10- nffactor(): obscure "no factor" bug [when trial division found and
       extracted *non monic* factors], [#930]                            [F127]
BA 11- src/kernel/ix86/asm0.h had an incorrect #line entry.              [F122] 
BA 12- COMPAT file was missing some functions renamed in 2.3:            [F128]
       flisexpr, flisseq -> gp_read_str; lisGEN  -> gp_read_stream
BA 13- nffactor could segfault. [#979]                                   [F135]
BA 14- missing type check in subgrouplist [#616]                    [2.4.2-F39]
BA 15- nfdisc --> "not a prime" error (help Round4 to recover when using
       non-primes, instead of raising immediate errors) [#624]      [2-4-2-F41]
BA 16- exp(0e1*I) --> SEGV [#630]                                   [2-4-2-F44]
BA 17- detection of exp2 and log2 was broken with C++ compilers          [F143]
BA 18- support for shared library on netbsd.                             [F144]
IZ 19- [readline] 'foo)' + M-C-b -> infinite loop                        [F145]
BA 20- factor(13533236897) -> I/O Warning [#1012]                        [F151]
BA 21- usqrtsafe result could be off by one.                             [F152]
BA 22- znprimroot(2) could segfault.
BA 23- ellap could go in an infinite loop.
IZ 24- [OS/2] Fix warning about string signedness.                       [F155]
IZ 25- [OS/2] Fix symbol checking in Configure.                          [F156]
BA 26- upowuu(2,31) returned a wrong result [#1031]                      [F157]
IZ 27- [OS/2]: stack check present but not enabled                   [2.4.0-F6]

Cheers,
Bill.