tree ad1b82a68a9b891a806efdca2d8a2c45b0819c56
parent db678bada9a25089f4ea32be0d8e6d678749459c
author Martin Hibdon <mhibdon@google.com> 1405632403 -0700
committer Martin Hibdon <mhibdon@google.com> 1405637162 -0700

Improve Exchange AutoDiscover

Clean up the way we attempt multiple different uris, and add
ability to attempt an unauthenticated get request if the first
two alternatives fail. Also, clean up the way that EasOptions
gets its HttpRequest.

Change-Id: Ib89e5e30f4fa6b2144d23ac39f3844099bfba4d0