Add changelog for 1.5.0-RC1

CHANGELOG.md

@@ -4,6 +4,38 @@ This changelog goes through all the changes that have been made in each release
 without substantial changes to our git log; to see the highlights of what has
 been added to each release, please refer to the [blog](https://blog.gitea.io).
 
+## [1.5.0-RC1](https://github.com/go-gitea/gitea/releases/tag/v1.5.0-rc1) - 2018-06-27
+* FEATURE
+  * Add cli commands to regen hooks & keys (#3979)
+  * Add support for FIDO U2F (#3971)
+  * Added user language setting (#3875)
+  * LDAP Public SSH Keys synchronization (#1844)
+  * Add topic support (#3711)
+  * Multiple assignees (#3705)
+  * Add protected branch whitelists for merging (#3689)
+  * Global code search support (#3664)
+  * Add label descriptions (#3662)
+  * Add issue search via API (#3612)
+  * Add repository setting to enable/disable health checks (#3607)
+  * Emoji Autocomplete (#3433)
+  * Implements generator cli for secrets (#3531)
+* ENHANCEMENT
+  * Add more webhooks support and refactor webhook templates directory (#3929)
+  * Add new option to allow only OAuth2/OpenID user registration (#3910)
+  * Add option to use paged LDAP search when synchronizing users (#3895)
+  * Symlink icons (#1416)
+  * Improve release page UI (#3693)
+  * Add admin dashboard option to run health checks (#3606)
+  * Add branch link in branch list (#3576)
+  * Reduce sql query times in retrieveFeeds (#3547)
+  * Option to enable or disable swagger endpoints (#3502)
+  * Add missing licenses (#3497)
+  * Reduce repo indexer disk usage (#3452)
+  * Enable caching on assets and avatars (#3376)
+  * Add repository search ordered by stars/forks. Forks column in admin repo list (#3969)
+* TRANSLATION
+  * Improve English grammar and consistency (#3614)
+
 ## [1.4.3](https://github.com/go-gitea/gitea/releases/tag/v1.4.3) - 2018-06-26
 * SECURITY
   * HTML-escape plain-text READMEs (#4192) (#4214)