Remove not used imports in models. Fix missing spaces in models when operator not preceded by a space. Add missing ugettext_lazy import to Proposal model.
Patch by: Pawel Solyga
Review by: to-be-reviewed
"""
Code used in a couple of places to work with the current thread's environment.
Current users include i18n and request prefix handling.
"""
try:
import threading
currentThread = threading.currentThread
except ImportError:
def currentThread():
return "no threading"