chore: Update composer
chore: Update composer

Changelogs summary:

 - patchwork/utf8 removed (installed version was v1.3.0)

 - nochso/omni updated from 0.3.0 to 0.3.2
   See changes: https://github.com/nochso/omni/compare/0.3.0...0.3.2
   Release notes: https://github.com/nochso/omni/releases/tag/0.3.2

 - phpunit/phpunit updated from 5.2.10 to 5.2.12
   See changes: https://github.com/sebastianbergmann/phpunit/compare/5.2.10...5.2.12
   Release notes: https://github.com/sebastianbergmann/phpunit/releases/tag/5.2.12

 - phpdocumentor/type-resolver updated from 0.1.6 to 0.1.7
   See changes: https://github.com/phpDocumentor/TypeResolver/compare/0.1.6...0.1.7
   Release notes: https://github.com/phpDocumentor/TypeResolver/releases/tag/0.1.7

nochso/writeme,nochso/writeme