Improved reactive bindings, adding navigation drawers.

app/src/main/AndroidManifest.xml

.../kuschku/quasseldroid_ng/persistence/PersistentSession.kt

...de/kuschku/quasseldroid_ng/persistence/QuasselDatabase.kt

...java/de/kuschku/quasseldroid_ng/service/QuasselService.kt

...c/main/java/de/kuschku/quasseldroid_ng/ui/ChatActivity.kt

...java/de/kuschku/quasseldroid_ng/ui/setup/SetupActivity.kt

.../quasseldroid_ng/ui/setup/accounts/AccountEditActivity.kt

.../de/kuschku/quasseldroid_ng/util/helper/LiveDataHelper.kt

...e/kuschku/quasseldroid_ng/util/helper/ObservableHelper.kt

...chku/quasseldroid_ng/util/service/ServiceBoundActivity.kt

.../de/kuschku/quasseldroid_ng/util/ui/DrawerRecyclerView.kt

...kuschku/quasseldroid_ng/util/ui/NavigationDrawerLayout.kt

app/src/main/res/drawable/bg_intro.xml

app/src/main/res/layout/activity_main.xml

app/src/main/res/layout/content_main.xml

app/src/main/res/values-sw600dp/dimens.xml

app/src/main/res/values-sw600dp/themes_base.xml

app/src/main/res/values-v21/themes_base.xml

app/src/main/res/values/attrs.xml

app/src/main/res/values/colors.xml