Work in progress.

Added cocoapods and through it, AFNetworking and HPPLE.

Transitioning to AFNetworking.

Fix for auto-login crash after creating an account.

Handles ssl fail-over in more central place, not just in
article retrieval.

Search results ordering updated to reflect recent
update to mobile web search.

Fix for edit token parameters being deprecated.

Change-Id: I991fac86a8788d3fd25595849b618a3d1ee7e699