use EMSCRIPTEN_KEEPALIVE instead of maintaining the EXPORTED_FUNCTIONS flag

Edward Rudd

2015-08-11 ba9e0fa6b07eb964d770793af3292bcb3078d62e

 client/CMakeLists.txt

@@ -30,7 +30,6 @@
    ../humble_cloud/urkle_cloud.js
ASM_FLAG
    NO_EXIT_RUNTIME=1
    EXPORTED_FUNCTIONS="['_main','_test_list_files','_test_async_fetch','_test_demo_end']"
PRE_JS
    ${TEST_DATA}
JS_LIBS