Merge branch 'mailbox-integration-tests' into 'master'

.gitlab-ci.yml

...n/java/org/briarproject/bramble/BrambleAndroidModule.java

...in/java/org/briarproject/bramble/TimeLoggingExecutor.java

...org/briarproject/bramble/crypto/CryptoExecutorModule.java

...a/org/briarproject/bramble/db/DatabaseExecutorModule.java

...riarproject/bramble/event/DefaultEventExecutorModule.java

...a/org/briarproject/bramble/lifecycle/LifecycleModule.java

...rg/briarproject/bramble/mailbox/MailboxApiCallerImpl.java

.../java/org/briarproject/bramble/mailbox/MailboxConfig.java

...a/org/briarproject/bramble/mailbox/MailboxConfigImpl.java

...rg/briarproject/bramble/mailbox/ModularMailboxModule.java

...arproject/bramble/mailbox/TorReachabilityMonitorImpl.java

...iarproject/bramble/system/DefaultTaskSchedulerModule.java

...iarproject/bramble/system/DefaultThreadFactoryModule.java

...mble/contact/ContactExchangeIntegrationTestComponent.java

...riarproject/bramble/mailbox/MailboxApiCallerImplTest.java

...java/org/briarproject/bramble/mailbox/MailboxApiTest.java

...arproject/bramble/mailbox/MailboxPairingTaskImplTest.java

...va/org/briarproject/bramble/mailbox/MailboxTestUtils.java

...oject/bramble/mailbox/TorReachabilityMonitorImplTest.java