Bump version to 2.6.1, require CMake 3.12.0

Fixes #210

Author: havogt

CMakeLists.txt

@@ -14,8 +14,8 @@
 set(CMAKE_INSTALL_PREFIX "${CMAKE_CURRENT_SOURCE_DIR}/install" CACHE PATH "CMake install prefix")
 
 cmake_policy(SET CMP0048 NEW)
-project(Serialbox LANGUAGES C CXX VERSION 2.6.0)
-cmake_minimum_required(VERSION 3.9.0)
+project(Serialbox LANGUAGES C CXX VERSION 2.6.1)
+cmake_minimum_required(VERSION 3.12.0)
 
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_C_EXTENSIONS OFF)