adding v4 sources to compatibility-v13-sources.jar

The v13 compatibility extra contains both android.support.v4 and
android.support.v13 packages. The Android SDK only provides the v13
sources for the extra. This commit adds the ability to the deployer to
attach both v4 and v13 sources to the jar.
Merge pull request #222 from WonderCsabo/188_v13FullSources

adding v4 sources to compatibility-v13-sources.jar