Merge pull request #810 from rsksmart/fix_buildinfo

Fix build information resolution

Author: diega

rskj-core/src/main/java/co/rsk/RskContext.java

@@ -427,7 +427,7 @@ public BuildInfo getBuildInfo() {
         if (buildInfo == null) {
             try {
                 Properties props = new Properties();
-                InputStream buildInfoFile = RskContext.class.getResourceAsStream("build-info.properties");
+                InputStream buildInfoFile = RskContext.class.getClassLoader().getResourceAsStream("build-info.properties");
                 props.load(buildInfoFile);
                 buildInfo = new BuildInfo(props.getProperty("build.hash"), props.getProperty("build.branch"));
             } catch (IOException | NullPointerException e) {