Use wrq:get_req_header() to extract user id
bookshelf 0.2.6

Updated deps:

  opscoderl_wm
    2013-07-31 1d5cde8 Merge branch 'hh/better-annotations'
    2013-07-29 a402766 Added integration testing for logger and writer
    2013-07-29 2a9e700 Updated docs to the new reality
    2013-07-29 573c4d7 Fixed type specs
    2013-07-29 ca97ead Refactored annotation config to use a list of atoms specifying keys.
    2013-07-29 ff1208e Removed user logging. This should be annotated instead.
    2013-07-29 4a1cf40 Expanded test cases to cover annotations
    2013-07-29 77ca8f9 Removed special parsing for perf_stats
    2013-07-29 11ba058 Use a binary() for annotations keys, and do not remap it
    2013-07-26 be3e319 Expand out proplist found in request annotation