Use code-block for curl examples

The code-block directive wasn't used for literal blocks in the
curl examples document, so they weren't highlighted nicely.

Change-Id: If0165ec666003682695c06a9b4ae840016b8355b
Block delegation escalation of privilege

Forbids doing the following with either a trust
  or oauth based token:
  creating a trust
  approving a request_token
  listing request tokens

Change-Id: I1528f9dd003f5e03cbc50b78e1b32dbbf85ffcc2
Closes-Bug:  1324592
Merge "Use code-block for curl examples"
Merge "Block delegation escalation of privilege"