add about.html in build.ui
diff --git a/portfolio/org.eclipse.egf.portfolio.eclipse.build.ui/build.properties b/portfolio/org.eclipse.egf.portfolio.eclipse.build.ui/build.properties
index 851f284..30aea5a 100644
--- a/portfolio/org.eclipse.egf.portfolio.eclipse.build.ui/build.properties
+++ b/portfolio/org.eclipse.egf.portfolio.eclipse.build.ui/build.properties
@@ -14,7 +14,9 @@
                icons/,\

                META-INF/,\

                plugin.xml,\

-               plugin.properties

+               plugin.properties,\

+               about.html

 jars.compile.order = .

 source.. = src/

 output.. = bin/

+src.includes = about.html