Bump version to 0.6.0 [skip ci]

Config.xcconfig

@@ -18,8 +18,8 @@ BUNDLE_IDENTIFIER = org.nightscout.$(DEVELOPMENT_TEAM).trio
 TRIO_APP_GROUP_ID = group.org.nightscout.$(DEVELOPMENT_TEAM).trio.trio-app-group
 
 // The developers set the version numbers, please leave them alone
-APP_VERSION = 0.5.1
-APP_DEV_VERSION = 0.5.1.30
+APP_VERSION = 0.6.0
+APP_DEV_VERSION = 0.6.0
 APP_BUILD_NUMBER = 1
 COPYRIGHT_NOTICE =