Use Enums for Kaltura publication status

[flipmcf]

rfa.kaltura2/src/rfa/kaltura2/kutils.py

Line 436 in 3b87589

elif status in (3,1,5):

rfa.kaltura2/src/rfa/kaltura2/kutils.py

Line 215 in 3b87589

kfilter.setModerationStatusIn('2,5,6,1')

Don't use magic numbers 1,2,3,4,5

Replace those with the actual enums defined by the Kaltura API:

for example,

from KalturaClient.Plugins.Core import KalturaEntryModerationStatus

KalturaEntryModerationStatus.PENDING_MODERATION

see events.py - that does it right.