add utils

dream/__init__.py

+# See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    from pkgutil import extend_path
+    __path__ = extend_path(__path__, __name__)

dream/platform/util.py

+def deunicodeData(data):
+  if isinstance(data, list):
+    new_data = []
+    for sub_data in data:
+      new_data.append(deunicodeData(sub_data))
+  elif isinstance(data, unicode):
+    new_data = data.encode('utf8')
+  elif isinstance(data, dict):
+    new_data = {}
+    for key, value in data.iteritems():
+      key = deunicodeData(key)
+      value = deunicodeData(value)
+      new_data[key] = value
+  elif isinstance(data, (int, float)):
+    new_data = data
+  else:
+    raise ValueError("unknow type : %r" % (data,))
+  return new_data
+