More verbose logging

There are some ACRA reports with this IllegalStateException getting hit.
It used to be that it was only ever because we forgot to request the
correct fields from the database. However now I'm not sure that this is
the only source. Perhaps it is also possible in response to parcelling
apk instances, or maybe something else? Either way, this should provide
further info about whether the apk doesn't belong to a repo for some
reason.

app/src/main/java/org/fdroid/fdroid/data/Apk.java

@@ -250,8 +250,10 @@ public class Apk extends ValueObject implements Comparable<Apk>, Parcelable {
 
     private void checkRepoAddress() {
         if (repoAddress == null || apkName == null) {
-            throw new IllegalStateException("Apk needs to have both Schema.ApkTable.Cols.REPO_ADDRESS and "
+            throw new IllegalStateException(
-                    + "Schema.ApkTable.Cols.NAME set in order to calculate URL.");
+                    "Apk needs to have both Schema.ApkTable.Cols.REPO_ADDRESS and " +
+                    "Schema.ApkTable.Cols.NAME set in order to calculate URL " +
+                    "[package: " + packageName + ", versionCode: " + versionCode + ", repoId: " + repoId + "]");
         }
     }