Merge branch 'releases/1.0.0' into develop

1.0.0 readiness
Merge branch 'hotfix/composer-branch-alias' into develop

Per zfcampus/zf-apigility-skeleton#58
Merge branch 'hotfix/17' into develop

Forward port #17
Merge branch 'feature/multipart-form-data' into develop

Forward port #18
Merge branch 'hotfix/19' into develop

Forward port #19
Merge branch 'hotfix/upload-using-streams' into develop

Forward port #20
Merge branch 'hotfix/readme-formatting' into develop

Removes code markers from headings
Merge branch 'hotfix/22' into develop

Forward port #22
Merge branch 'hotfix/23' into develop

Forward port #23
Use phpcs instead of php-cs-fixer

- Updated composer.json and travis configuration
- Fixed errors/warnings reported after initial run
Merge branch 'hotfix/phpcs'