Putting the library in JCenter (or maven)

[hshahdoost]

Since all of android libraries are in JCenter (or maven central) I suggest to put this nivo library in one of the following repositories in order to make it easier to use.

[MJafarMashhadi]

We had, but we had to take it down for some technical difficulties. But they're available in our private maven repository so adding it to the dependencies via Gradle is pretty much similar to if it was on JCenter.