Merge pull request php-tmdb#186 from dblazeski/2.1

Fixes Y-d-m format

Merge pull request php-tmdb#182 from werstreamtes/fix-recommendations…

…-in-factories

Add recommendations to MovieFactory

Add implementation for recommendations (php-tmdb#179)

* Add implementation for recommendations

* Edited credits

Fixes php-tmdb#167

Merge branch '2.1' of github.com:php-tmdb/api into 2.1

Merge branch 'feature/167' into 2.1

Allow Symfony 4 components (php-tmdb#172)

Allow kevinrob/guzzle-cache-middleware 2 (php-tmdb#166)

There does not seem to be any BC break that affects php-tmdb. The only
documented BC break is here:
Kevinrob/guzzle-cache-middleware#75

Release v2.1.10

- Fix issue with loading tagged images of persons (php-tmdb#146)
- Fix tests for non-UTC environments (php-tmdb#147)
- Fix reading response header for Retry-After (php-tmdb#155)
- Fix `secure` option handling (php-tmdb#145)
- Pass relative path to HTTP adapters (php-tmdb#149)

Release v2.0.19

- Fix issue with loading tagged images of persons (php-tmdb#146)
- Pass relative path to HTTP adapters (php-tmdb#149)
- Set retry-after to be on second by default in case of retries (php-tmdb#158)