v0.4.0-rc

• [Feature] Added in memory queue using taskq #342
• [Feature] Added in memory database using bolt #390 #388 #347 #348 #343
• [Feature] Native Realm Implementation #349
• [Feature] Add Group statistics #330
• [Feature] Spilt Server Worker CLI #350
• [Feature] Add support for New Relic #264
• [Feature] Add application search #336
• [Bugfix] Configure Max response size to store #345
• [Enhancement] Fix slow dashboard summary endpoint #381
• [Enhancement] Improve Request Validation #365
• [Enhancement] Event deliveries search apps filter #382