add comments, add field

src/main/java/gov/usgs/earthquake/nshmp/internal/AppVersion.java

@@ -6,8 +6,14 @@ import com.google.common.base.Charsets;
 import com.google.common.io.Resources;
 import com.google.gson.Gson;
 
+/**
+ * Interface for reading in version info JSON files.
+ */
 public interface AppVersion {
 
+  /**
+   * Returns the version info for the repo.
+   */
   public VersionInfo getVersionInfo();
 
   static VersionInfo versionInfo(URL resource) {
@@ -20,6 +26,9 @@ public interface AppVersion {
     }
   }
 
+  /**
+   * The version info of a repository.
+   */
   public static class VersionInfo {
     public String branchName;
     public int commitDistance;
@@ -27,6 +36,7 @@ public interface AppVersion {
     public String gitHashFull;
     public boolean isCleanTag;
     public String lastTag;
+    public String projectName;
     public String url;
     public String version;
   }