Update Deps + Cleanup (#1158)

* Fix Typo

* Update build.gradle

* Update Deps

* Update Tests

* Fixes Tests

Without this some tests fail on my PC...

+ also:
"Put this in your gradle.properties:

android.enableUnitTestBinaryResources=true"
from http://robolectric.org/migrating/#project-configuration

* Make everything private

* Fix Warning

* Update TimelineFragment.java

* Update build.gradle

* Update gradle-wrapper.properties

* Update gradle-wrapper.properties

* Update gradle-wrapper.properties

* Fix Compile Errors

e.g.

Type inference failed. Expected type mismatch: inferred type is Preference? but Preference was expected

Type inference failed. Please try to specify type arguments explicitly.

* fix crash

* Grandle Wrapper 5.3

* Revert "Fix Compile Errors"

This reverts commit 4a774a4fe3ce82c84bd7b4d78e1a1c64af97cd0d.

* requirePreference

* oops

* Cleanup

* Update gradle-wrapper.properties

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.3-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists