update to version 1.3.6

Bugfix release.

CMakeLists.txt

 cmake_minimum_required (VERSION 3.1)
 project (opendht)
 set (opendht_VERSION_MAJOR 1)
-set (opendht_VERSION_MINOR 3.5)
+set (opendht_VERSION_MINOR 3.6)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 set (VERSION "${opendht_VERSION}")

configure.ac

 dnl define macros
 m4_define([opendht_major_version], 1)
 m4_define([opendht_minor_version], 3)
-m4_define([opendht_patch_version], 5)
+m4_define([opendht_patch_version], 6)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])