docs: release notes for v0.2.9

Author: fubuloubu

docs/release-notes.rst

@@ -3,6 +3,23 @@
 Release Notes
 #############
 
+v0.2.9
+******
+
+Date released: 12-02-2020
+
+Non-breaking changes and improvements:
+- Add license to wheel, Anaconda support (`#2265 <https://github.com/vyperlang/vyper/pull/2265>`_)
+- Consider events during type-check with `implements:` (`#2283 <https://github.com/vyperlang/vyper/pull/2283>`_)
+- Refactor ABI generation (`#2284 <https://github.com/vyperlang/vyper/pull/2284>`_)
+- Remove redundant checks in parser/signatures (`#2288 <https://github.com/vyperlang/vyper/pull/2288>`_)
+
+Fixes:
+- Change forwarder proxy bytecode to ERC-1167 (`#2281 <https://github.com/vyperlang/vyper/pull/2281>`_)
+- Reserved keywords check update (`#2286 <https://github.com/vyperlang/vyper/pull/2286>`_)
+
+Tons of Refactoring work courtesy of @iamdefinitelyahuman!
+
 v0.2.8
 ******