Release version 1.3.5

* ChangeLog: Release version 1.3.5.
* configure.ac (VERSION): Bump version.
* bin/abyss-pe: Ditto.
* doc/ABYSS.1: Ditto.
* doc/abyss-pe.1: Ditto.
* doc/abyss-tofastq.1: Ditto.