Fix "Cannot call unknown function" error in minified code.

-s EXPORTED_FUNCTIONS switch does not definded. So, minified code was not able to run...
emscripten-core/emscripten#849

Makefile

@@ -1,5 +1,5 @@
 EMCC:=emcc
-EMCC_OPTS:=-O1 -s LINKABLE=1 -s ASM_JS=0
+EMCC_OPTS:=-O1 -s LINKABLE=1 -s ASM_JS=0 -s ALLOW_MEMORY_GROWTH=1 -s EXPORTED_FUNCTIONS="['_get_lame_version', '_lame_init', '_lame_init_params', '_lame_set_mode', '_lame_get_mode', '_lame_set_num_samples', '_lame_get_num_samples', '_lame_set_num_channels', '_lame_get_num_channels','_lame_set_in_samplerate', '_lame_get_in_samplerate', '_lame_set_out_samplerate', '_lame_get_out_samplerate', '_lame_set_brate','_lame_get_brate','_lame_set_VBR','_lame_get_VBR', '_lame_set_VBR_q', '_lame_get_VBR_q', '_lame_set_VBR_mean_bitrate_kbps', '_lame_get_VBR_mean_bitrate_kbps', '_lame_set_VBR_min_bitrate_kbps', '_lame_get_VBR_min_bitrate_kbps', '_lame_set_VBR_max_bitrate_kbps', '_lame_get_VBR_max_bitrate_kbps', '_lame_encode_buffer_ieee_float', '_lame_encode_flush', '_lame_close']"
 EMCONFIGURE:=emconfigure
 EMMAKE:=emmake
 LAME_URL:="http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz"
@@ -14,7 +14,7 @@ dist/libmp3lame.js: $(LAME) pre.js post.js
 	$(EMCC) $(EMCC_OPTS) --pre-js pre.js --post-js post.js $(wildcard $(LAME)/libmp3lame/*.o) -o $@
 
 dist/libmp3lame.min.js: dist/libmp3lame.js
-	closure-compiler $< --language_in ECMASCRIPT5 --js_output_file $@
+	./compiler.jar $< --language_in ECMASCRIPT5 --js_output_file $@
 
 $(LAME): $(LAME).tar.gz
 	$(TAR) xzvf $@.tar.gz && \