Squashed commit of the following:

commit 391a6ef997c3f387edd5c92604c3e947ec4b8ca4
Author: Camille Baldock <camille@camillebaldock.co.uk>
Date:   Mon Jan 13 16:25:37 2014 +0000

    Squashed commit of the following:

    commit 836aff6a227613f658a4b6df0c696292adc61be7
    Author: Camille Baldock <camille@camillebaldock.co.uk>
    Date:   Mon Jan 13 16:22:47 2014 +0000

        reinsert oauth

    commit 8f9406327c3e5efecc7c351b0aa14cd00d6ff845
    Author: Camille Baldock <camille@camillebaldock.co.uk>
    Date:   Mon Jan 13 15:56:57 2014 +0000

        spacing

commit 001a61e2e434a1b563bcca3dcaa25c358db187a9
Author: Camille Baldock <camille@camillebaldock.co.uk>
Date:   Mon Jan 13 15:54:05 2014 +0000

    Update documentation, with correct patient_id and user_id, and updated params for metadata and medications