Bump version and changelog for 0.5.1

Signed-off-by: Julius Härtl <jus@bitgrid.net>

CHANGELOG.md

@@ -1,6 +1,28 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## 0.5.1 - 2018-12-05
+
+### Added
+- Separate settings for description changes in activity
+- Less verbose description change activities
+- Use server settings to restrict sharing to groups
+- Add setting to exclude groups from creating their own boards
+
+### Fixed
+- Fix issue when using a separate table prefix @bpcurse
+- Fix invalid activity parameters being published
+- Wording fixes @cloud2018
+- Improve loading performance by removing unused activity preloading
+- Fix timestamp issues in deleted items tab
+- Remember show state of the board navigation @weeman1337
+- Add optional classes for custom styling @tinko92
+- Fix missing details on activity emails
+- Fix unrelated comments in board activity list
+- Fix search not working properly
+- Trigger comment notification on update only
+
+
 ## 0.5.0 - 2018-11-15
 
 ### Added

appinfo/info.xml

@@ -17,7 +17,7 @@
 - 🚀 Get your project organized
 
 </description>
-    <version>0.5.1-dev2</version>
+    <version>0.5.1</version>
     <licence>agpl</licence>
     <author>Julius Härtl</author>
     <namespace>Deck</namespace>