Added first CHANGELOG draft for v2
Added back 1.10.1, 1.10.2 and 1.10.3 to CHANGELOG
Updated CHANGELOG to add extra links
Remove useless logger from default config object
Support for `config.exclude` patterns

Example `.sassdocrc`:

    exclude:
      - scss/utils/_functions.scss
      - scss/{private,exclude}/**
      - scss/vendor/**