Version bump; update changelog

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

CHANGELOG.md

 # Changelog
 All notable changes to this project will be documented in this file.
 
+## 0.7.5 – 2017-11-27
+### Added
+- Avatar from Gravatar and favicons
+- Sourcemap support to debug release erros on client-side
+### Fixed
+- Attachment download to Nextcloud files
+- Setup autoconfig issues
+- Reply to/cc field prefilling
+- Removed development log statement
+- Favorites folder appeares as subfolder of inbox
+- Folder unread counter visibility
+- Prefilled sender name in replies
+- Two security issues
+- Subfolder collapsing
+
 ## 0.7.4 – 2017-10-30
 ### Added
 - IMAP/SMTP logging enabled by default if debug mode is turned on

appinfo/info.xml

@@ -5,7 +5,7 @@
 	<name>Mail</name>
 	<summary>IMAP web client</summary>
 	<description>Easy to use email client which connects to your mail server via IMAP and SMTP.</description>
-	<version>0.7.4</version>
+	<version>0.7.5</version>
 	<licence>agpl</licence>
 	<author>Christoph Wurst</author>
 	<author>Jan-Christoph Borchardt</author>

package.json

 {
   "name": "mail",
-  "version": "0.7.4",
+  "version": "0.7.5",
   "description": "Mail app",
   "main": "index.js",
   "directories": {