Normalize the given URI (removes extra slashes)

		:param uri: uri to normalize
		:return: str

def normalize_uri(cls, uri):
		""" Normalize the given URI (removes extra slashes)

		:param uri: uri to normalize
		:return: str
		"""
		uri = WWebRoute.multiple_slashes_re.sub("/", uri)

		# remove last slash
		if len(uri) > 1:
			if uri[-1] == '/':
				uri = uri[:-1]

		return uri