Remove some not needed imports

accounts/management/commands/setupgroups.py

-from django.core.management.base import BaseCommand, CommandError
-from trans.models import SubProject
+from django.core.management.base import BaseCommand
 from optparse import make_option
 from django.contrib.auth.models import Group, Permission, User
 

lang/management/commands/setuplang.py

 # -*- coding: UTF-8 -*-
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from lang.models import Language
 from translate.lang import data
 

trans/management/commands/__init__.py

-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from optparse import make_option
 from trans.models import Unit
 

trans/management/commands/checkgit.py

-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from trans.models import SubProject
 from optparse import make_option
 

trans/management/commands/cleanuptrans.py

-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from trans.models import Suggestion, Check, Unit, Project
 from lang.models import Language
-from optparse import make_option
 
 class Command(BaseCommand):
     help = 'clenups orphaned checks and suggestions'

trans/management/commands/commitgit.py

-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from trans.models import SubProject
 from optparse import make_option
 

trans/management/commands/loadpo.py

-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from trans.models import SubProject
 from optparse import make_option
 

trans/management/commands/rebuild_index.py

@@ -3,7 +3,6 @@ from trans.models import Unit
 from lang.models import Language
 import trans.search
 from optparse import make_option
-from django.db.models import Q
 
 class Command(UnitCommand):
     help = 'updates index for fulltext search'

trans/management/commands/updatechecks.py

 from trans.management.commands import UnitCommand
-from optparse import make_option
 
 class Command(UnitCommand):
     help = 'updates checks for units'

trans/management/commands/updategit.py

-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 from trans.models import SubProject, Project
 from optparse import make_option