First, there is no apklib for com.android.support:appcompat-v7. It only ships as an aar.
Second, that library is not available in maven-central, it ships with the Android SDK. You need to manually deploy it to your local maven repository.
Though you can use maven-sdk-deployer to construct and deploy the apk to your local folder. But you github project is failing due to missing internal dependencies.
com.msplearning.android-support-v4:jar:19.1.0
, com.msplearning:android-support-v7-appcompat:jar:19.1.0