Fix #666 - Manpages should go in share/man

CMakeLists.txt

@@ -132,13 +132,7 @@ install(
 	PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_WRITE GROUP_EXECUTE WORLD_READ WORLD_WRITE WORLD_EXECUTE
 )
 install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE DESTINATION share/doc/ngs)
-
-if(APPLE)
-    set(MAN_DIR share/man/man1)
-else()
-    set(MAN_DIR man/man1)
-endif()
-install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc/ DESTINATION ${MAN_DIR} FILES_MATCHING PATTERN "*.1")
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc/ DESTINATION share/man/man1 FILES_MATCHING PATTERN "*.1")
 
 enable_testing()
 add_test(all bash -c "${CMAKE_CURRENT_BINARY_DIR}/ngs ${CMAKE_CURRENT_SOURCE_DIR}/test.ngs")