Improvement to avoid Rate exceeded errors
Hotfix to avoid AWS API Rate exceeded errors (#33) * Added throttling mechanism to avoid "Rate exceeded" errors * Packages updated * Revert "Packages updated" This reverts commit a1bb89a88c92c3f20da3ba733e9d93666710c5bf. * Update package * Compatibility * No suggestions on travis build please * Try to build on 7.2 * PHPUnit updated * Try another package to analyze code coverage with coveralls * Removed outdated guzzle/guzzle package from dev dependencies