build: add tracking file
Merge pull request #73 from deafgoat/master

build: add tracking file
CDRIVER-424 Fix node selection with read preference tags
CDRIVER-424 C89 is a thing still -> because Windows
CDRIVER-424 make conditional explicit
CDRIVER-424 filter out non-matching nodes before those that are far
minor: CDRIVER-419 add instructions for how to generate docs
minor: fix formatting in README
minor: update TUTORIAL.md to fix broken API link
minor: rename private _mongoc_write_concern_has_gle to needs_gle
CDRIVER-407 only include GLE in write concern when needed