Issue #515 Alternate start modules

Added another usecase

jetty-start/src/test/resources/usecases/alternate.4.assert.txt

@@ -0,0 +1,17 @@
+## The XMLs we expect (order is important)
+XML|${jetty.home}/etc/base.xml
+XML|${jetty.home}/etc/main.xml
+XML|${jetty.base}/etc/ndb.xml
+
+# The LIBs we expect (order is irrelevant)
+LIB|${jetty.home}/lib/base.jar
+LIB|${jetty.home}/lib/main.jar
+LIB|${jetty.home}/lib/other.jar
+
+# The Properties we expect (order is irrelevant)
+PROP|main.prop=value0
+PROP|default.option=alternate
+PROP|noDft.option=B
+
+# Files / Directories to create
+FILE|maindir/

jetty-start/src/test/resources/usecases/alternate.4.cmdline.txt

@@ -0,0 +1 @@
+--module=alternate

jetty-start/src/test/resources/usecases/alternate.4.prepare.txt

@@ -0,0 +1 @@
+--add-to-startd=noDftOptionB