fix some messages, add translation for some keywords, update tr locale file

create/models.py

@@ -1,11 +1,11 @@
 from django.db.models import Model, CharField, IntegerField
-
+from django.utils.translation import ugettext_lazy as _
 
 class Flavor(Model):
-    label = CharField(max_length=12)
-    memory = IntegerField()
-    vcpu = IntegerField()
-    disk = IntegerField()
+    label = CharField(_('label'), max_length=12)
+    memory = IntegerField(_('memory'))
+    vcpu = IntegerField(_('vcpu'))
+    disk = IntegerField(_('disk'))
 
     def __unicode__(self):
         return self.name