Combine regression test suite and main CMake projects

Combining the projects makes it easier to use common components. This
fixes the build failure of maxutils due to missing jansson definitions.

maxutils/CMakeLists.txt

@@ -1,23 +1 @@
-enable_testing()
-
-project(maxutils)
-cmake_minimum_required(VERSION 2.8)
-set(CMAKE_CXX_FLAGS "-fPIC -std=c++11 -ggdb -Wall -Werror -Wno-unused-function")
-
-# Check for GLIBC. The XSI version of strerror_r return an int and the GNU version a
-# char*. Depending on this check, we make assumptions about the system.
-include(CheckCXXSourceCompiles)
-check_cxx_source_compiles("
-  #define _GNU_SOURCE 1
-  #include <string.h>\n
-  int main(){\n
-      char errbuf[200];\n
-      return strerror_r(13, errbuf, sizeof(errbuf)) == errbuf;\n
-  }\n"
-  HAVE_GLIBC)
-
-if(HAVE_GLIBC)
-  add_definitions(-DHAVE_GLIBC=1)
-endif()
-
 add_subdirectory(maxbase)