Bump version.

Author: waywardmonkeys

tools/shared.py

@@ -345,7 +345,7 @@ def find_temp_directory():
 # we re-check sanity when the settings are changed)
 # We also re-check sanity and clear the cache when the version changes
 
-EMSCRIPTEN_VERSION = '1.8.9'
+EMSCRIPTEN_VERSION = '1.8.10'
 
 def generate_sanity():
   return EMSCRIPTEN_VERSION + '|' + get_llvm_target() + '|' + LLVM_ROOT + '|' + get_clang_version()