chore: bump version

Plus, remove the clog configuration file,
since that's not being used anymore.

CHANGELOG.md

@@ -1,3 +1,24 @@
+<a name="4.7.1"></a>
+## 4.7.1 (2022-04-20)
+
+#### Features
+
+- The amount of dependency crates that need to be compiled went down from ~65 to
+  ~45 by bumping dependency versions.
+- The minimum Rust version in the install scripts has been bumped to 1.56.0 (this isn't in
+  the release itself, since install scripts don't really get versioned)
+
+#### Bug Fixes
+
+- **arc1**: A small part has been rewritten using a more functional code style (#968).
+- **using_as**: A small part has been refactored to use `sum` instead of `fold`, resulting
+  in better readability.
+
+#### Housekeeping
+
+- The changelog will now be manually written instead of being automatically generated by the
+  Git log.
+
 <a name="4.7.0"></a>
 ## 4.7.0 (2022-04-14)