Allow __BUILD_NUMBER__ as valid build number in ApplicationInfo.xml et al

platform/util/src/com/intellij/openapi/util/BuildNumber.java

@@ -57,6 +57,9 @@ public class BuildNumber implements Comparable<BuildNumber> {
 
   public static BuildNumber fromString(String version) {
     if (version == null) return null;
+
+    if ("__BUILD_NUMBER__".equals(version)) return new BuildNumber("", 90, Integer.MAX_VALUE);
+
     String code = version;
     int productSeparator = code.indexOf('-');
     final String productCode;