Please backport ncbi-blast+ 2.2.31-4 (universe) from xenial

[Michael R. Crusoe]

Please backport ncbi-blast+ 2.2.31-4 (universe) from xenial to wily.

Reason for the backport:
========================
New features

Added support for BLAST-XML2 specification.
Added support for JSON Blast output format.

Improvements

Improved adaptive batch size algorithm to better handle small databases.
Preface error/warning message(s) with name of the application.
Allow multiple deflines even without GIs.
Download more concise database information for -remote searches.

Testing:
========
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 wily ncbi-blast+

* wily:
[x] Package builds without modification
[x] ncbi-blast+-legacy installs cleanly and runs
[x] ncbi-blast+ installs cleanly and runs

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

ncbi-blast+-legacy
------------------

ncbi-blast+
-----------
* med-bio
  [ ] wily (Reverse-Recommends)
* python3-biopython
  [ ] wily (Reverse-Recommends)
* t-coffee
  [ ] wily (Reverse-Recommends)
* macsyfinder
  [x] wily (Reverse-Depends)
* libstdc++6
  [ ] wily (Reverse-Breaks)
* python-biopython
  [ ] wily (Reverse-Recommends)
  [x] wily (Reverse-Build-Depends)
* ltrsift
  [ ] wily (Reverse-Recommends)