v0.4.0

** This release has public api changes**

Enhancement

• Add Channel Restore API (#103)
• Add Get Deleted Channels API (#106)
• Add Get Custom Emoji Image API (#111)
• Add test case for GetFlaggedPostsForUser and fix it (#113)

Bugfix

• Fix Caches route url (#105)

Update dependency

• Update jackson-databind (#114)

Refactoring

• Code Format & CheckStyle checks (#101)
• Stop deprecated QueryBuilder#append use (#102)