Update to the latest emscripten and SQLite

Makefile

@@ -1,31 +1,27 @@
-# Need $(EMSCRIPTEN), for example run with        emmake make
+EMCC=emcc
 
-EMSCRIPTEN?=/usr/bin
-
-EMCC=$(EMSCRIPTEN)/emcc
-
-CFLAGS=-DSQLITE_OMIT_LOAD_EXTENSION -DSQLITE_DISABLE_LFS -DLONGDOUBLE_TYPE=double -DSQLITE_INT64_TYPE="long long int" -DSQLITE_THREADSAFE=0 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS
+CFLAGS=-O2 -DSQLITE_OMIT_LOAD_EXTENSION -DSQLITE_DISABLE_LFS -DLONGDOUBLE_TYPE=double -DSQLITE_THREADSAFE=0 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS
 
 all: js/sql.js debug js/worker.sql.js memory-growth
 
 # RESERVED_FUNCTION_POINTERS setting is used for registering custom functions
-debug: EMFLAGS= -O1 -g -s INLINING_LIMIT=10 -s RESERVED_FUNCTION_POINTERS=64
-debug: js/sql-debug.js
-
-optimized: EMFLAGS= --memory-init-file 0 --closure 1 -O3 -s INLINING_LIMIT=50 -s RESERVED_FUNCTION_POINTERS=64
+optimized: EMFLAGS= --memory-init-file 0 -O3 -s INLINING_LIMIT=50 -s RESERVED_FUNCTION_POINTERS=64
 optimized: js/sql-optimized.js
 
-memory-growth: EMFLAGS= --memory-init-file 0 --closure 1 -O3 -s INLINING_LIMIT=50 -s RESERVED_FUNCTION_POINTERS=64 -s ALLOW_MEMORY_GROWTH=1
+memory-growth: EMFLAGS= --memory-init-file 0 -O3 -s INLINING_LIMIT=50 -s RESERVED_FUNCTION_POINTERS=64 -s ALLOW_MEMORY_GROWTH=1
 memory-growth: js/sql-memory-growth.js
 
+debug: EMFLAGS= -O1 -g -s INLINING_LIMIT=10 -s RESERVED_FUNCTION_POINTERS=64
+debug: js/sql-debug.js
+
 js/sql.js: optimized
 	cp js/sql-optimized.js js/sql.js
 
 js/sql%.js: js/shell-pre.js js/sql%-raw.js js/shell-post.js
 	cat $^ > $@
 
 js/sql%-raw.js: c/sqlite3.bc c/extension-functions.bc js/api.js exported_functions
-	$(EMCC) $(EMFLAGS) -s EXPORTED_FUNCTIONS=@exported_functions c/extension-functions.bc c/sqlite3.bc --post-js js/api.js -o $@ ;\
+	$(EMCC) $(EMFLAGS) -s EXPORTED_FUNCTIONS=@exported_functions -s EXTRA_EXPORTED_RUNTIME_METHODS=@exported_runtime_methods c/extension-functions.bc c/sqlite3.bc --post-js js/api.js -o $@ ;\
 
 js/api.js: coffee/api.coffee coffee/exports.coffee coffee/api-data.coffee
 	cat $^ | coffee --bare --compile --stdio > $@