define maxPersistence, aggressively timeout messageList
set expiry always when unsubscribing from messageList
rename some test exports for clarity
maxPersistence for presence
Merge branch 'master' into vanchi/RADAR-16_maxPersistence
Merge branch 'vanchi/RADAR-16_maxPersistence' into vanchi/RADAR-22_maxPersistence_for_presence
make apply_defaults clearer
Merge branch 'vanchi/RADAR-16_maxPersistence' into vanchi/RADAR-22_maxPersistence_for_presence
use var
Merge branch 'vanchi/RADAR-16_maxPersistence' into vanchi/RADAR-22_maxPersistence_for_presence
apply_defaults for presence
Merge pull request #9 from zendesk/vanchi/RADAR-22_maxPersistence_for_presence

maxPersistence for presence
Merge pull request #8 from zendesk/vanchi/RADAR-16_maxPersistence

define maxPersistence, aggressively timeout messageList