Add changelog and set proper max-version

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.
 
+## 0.5.0 - unreleased
+
+### Added
+
+- Activity stream for board and cards
+- Comments on cards
+- Use users locale format on date picker
+- Compact display mode
+- Card title inline editing
+- REST API
+- Empty content view for board lists
+- Undo for card and stack deletion
+- Show tag name on board
+- Notify users about card assignments
+- Add shortcut to assign a card to yourself
+- Improved view for printing
+
+### Fixed
+
+- Accesibility improvements
+- Don't allow empty card titles
+
 ## 0.4.0 - 2018-07-11
 
 ### Added

appinfo/info.xml

@@ -29,7 +29,7 @@
     <screenshot>https://download.bitgrid.net/nextcloud/deck/screenshots/Deck_Board.png</screenshot>
     <screenshot>https://download.bitgrid.net/nextcloud/deck/screenshots/Deck_Details.png</screenshot>
     <dependencies>
-        <nextcloud min-version="13" max-version="15" />
+        <nextcloud min-version="13" max-version="14" />
     </dependencies>
     <background-jobs>
         <job>OCA\Deck\Cron\DeleteCron</job>