Fix CMake warnings

Author: hwiedPro

CMakeLists.txt

@@ -1,10 +1,11 @@
 # CMakeLists.txt has to be located in the project folder and cmake has to be
 # executed from 'project/build' with 'cmake ../'.
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 3.0)
 find_package(Rock)
+project(lib_config VERSION 0.1)
 SET( CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -std=c++11" )
 
-rock_init(lib_config 0.1)
+rock_init()
 include_directories(src)
 rock_standard_layout()