Use modern cmake variables for output directories.

Auditwheel did not find the binaries, so the wheels were not built correctly.
This commit changes the output directory variables to the modern CMake ones, since cmake>3.5 is set since 1.6.0.

Author: rabyj

CMakeLists.txt

@@ -6,8 +6,8 @@ if(POLICY CMP0167)
 endif()
 
 SET( PROJ_NAME "epiGeEC" )
-SET( EXECUTABLE_OUTPUT_PATH "${CMAKE_SOURCE_DIR}/epigeec/bin" )
-SET( LIBRARY_OUTPUT_PATH "${CMAKE_SOURCE_DIR}/epigeec/lib" )
+SET( CMAKE_EXECUTABLE_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/epigeec/bin" )
+SET( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/epigeec/lib" )
 SET( CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} ${CMAKE_SOURCE_DIR}/epigeec/lib )
 
 SET(CMAKE_SKIP_BUILD_RPATH  FALSE)