Temporarily set prayer-letters auth to PLS
Switched prayerletters URL to PLS stage
Added http logger for debugging
Set PLS content-type to json
Merged master and format activity comment
Added in 480s timeout to prayer-letters requests
Only use application/json content type for PUT
Merge branch 'pls-integration-stage' of https://github.com/CruGlobal/mpdx into stage

Conflicts:
	app/models/prayer_letters_account.rb
Merge branch 'MPDX-186-find-duplicates' of https://github.com/CruGlobal/mpdx into stage
Merge branch 'MPDX-186-find-duplicates' of https://github.com/CruGlobal/mpdx into stage
Don't match contacts by addresses like "Insufficient address"
Handle insufficient address and stricter logic for "Friend of the ministry"