Add function to update profile with /account/update_profile

[YoSmudge]

Support updating profiles

[ChimeraCoder]

Thanks for adding! Not sure why the CI failed on tip - let's try this again.

[ChimeraCoder]

Okay, mind rebasing this onto master? The tests should pass now.

[YoSmudge]

Hey,

Rebased on master now.

As for the tests, I believe the failing CI was down to requiring tests to pass on Golang tip. Since tip is the development version of Golang it's often unstable, the actual test failure was down to the latest commit on tip completely breaking the compiler.

While testing against tip is useful, this instability can lead to flapping tests and random failures, what I tend to do in my .travis.yml file is add

go:
  - 1.5
  - 1.6
  - tip

matrix:
  allow_failures:
    - go: tip

This will run the tests against tip, but won't fail the build if only tip fails.

Thanks

[muesli]

@YoSmudge: Would you mind splitting that up in two PRs and rebasing / squashing everything? Thanks!