updated dependencies for dev
Modified: composer.json

- moved ext-curl from require to suggest.
- removed ext-spl from require. (starting with PHP 5.3.0, ext-spl can no longer be disabled)
added --prefer-source to travis
removed repositories/changesets/likes endpoint. ref #1
removed newuser endpoint
removed newuser endpoint: lib, tests, docs ; fix and close #10
cleaned imports in Api.php
removed legend from docs/Home
fixed typo in docs/authentication
Merge branch 'feature/maintenance' into develop

cleaned imports, fixed typos in docs.
0.1.1