Added changelog

CHANGELOG.md

@@ -0,0 +1,52 @@
+# Change Log
+
+The change log describes what is "Added", "Removed", "Changed" or "Fixed" between each release. 
+
+
+## 2.0.0-rc5 (UNRELEASED)
+
+### Added 
+
+- Support for JWT authentication
+- API for Organization\Members
+- API for Integrations
+- API for Repo\Cards
+- API for Repo\Columns
+- API for Repo\Projects
+- Methods in Repo API for frequency and participation
+
+### Changed
+
+- `ApiLimitExceedException::__construct` has a new second parameter for the remaining API calls. 
+
+## 2.0.0-rc4
+
+### Added 
+
+- HTTPlug to decouple from Guzzle
+- `Github\Client::getLastResponse` was added 
+- Support for PSR-6 cache
+- `Github\Client::addPlugin` and `Github\Client::removePlugin`
+- `Github\Client::getApiVersion`
+- `Github\Client::removeCache`
+
+### Changed
+
+- Uses of `Github\HttpClient\HttpClientInterface` is replaced by `Http\Client\HttpClient` ie the constructor of `Github\Client`.
+- We use PSR-7's representation of HTTP message instead of `Guzzle\Http\Message\Response` and `Guzzle\Http\Message\Request`.
+- `Github\Client::addHeaders` was added instead of `Github\Client::setHeaders`
+- Signature of `Github\Client::useCache` has changed. First argument must be a `CacheItemPoolInterface`
+- We use PSR-4 instead of PSR-0
+
+### Removed
+
+- Support for PHP 5.3 and 5.4
+- `Github/HttpClient/HttpClientInterface` was removed
+- `Github/HttpClient/HttpClient` was removed
+-  All classes in `Github/HttpClient/HttpClient/Listener/*` were removed
+- `Github/HttpClient/CachedHttpClient` was removed
+-  All classes in `Github/HttpClient/Cache/*` were removed
+
+## 1.7.1 
+
+No change log before this version