Added new tests, did minor cleanups

lib/src/main/java/de/kuschku/libquassel/protocol/Protocol.kt

...l/protocol/primitive/serializer/ProtocolInfoSerializer.kt

...c/main/java/de/kuschku/libquassel/quassel/ProtocolInfo.kt

...a/de/kuschku/libquassel/quassel/syncables/AliasManager.kt

...a/de/kuschku/libquassel/quassel/syncables/BufferSyncer.kt

...kuschku/libquassel/quassel/syncables/BufferViewManager.kt

...ava/de/kuschku/libquassel/integration/AliasManagerTest.kt

...e/kuschku/libquassel/integration/SampleIntegrationTest.kt

...va/de/kuschku/libquassel/integration/SignedIdNameTests.kt

...rotocol/primitive/serializer/HostAddressSerializerTest.kt

...otocol/primitive/serializer/ProtocolInfoSerializerTest.kt

.../kuschku/libquassel/quassel/syncables/AliasManagerTest.kt

.../kuschku/libquassel/quassel/syncables/BufferSyncerTest.kt

...hku/libquassel/quassel/syncables/BufferViewManagerTest.kt

lib/src/test/java/de/kuschku/libquassel/util/SetupTests.kt

lib/src/test/java/de/kuschku/libquassel/util/TestSession.kt