Project versions out-of-date

[Brainsucker92]

Hello there,

after improting this project into my IDE, it was screaming towards me the project is using various outdated dependency resources. Only after updating all of them I was able to build the project properly.

In particular I had to update all build.gradle files as well as the gradle-wrapper.properties file in order to make the project build again in Android Studio.
So before opening a pull-request straight away to fix those issues I wanted to make sure if there is not any particular reason not to update all that stuff?

[kbiakov]

See #56