Adding gitignore lines for an Eclipse project in the /test directory

Currently we've got gitignore lines to allow an Eclipse project based
out of the /htdocs directory. For test development, I also find it handy
to set up a separate one in the /test directory.

Change-Id: Ie91b57b82940162a17c556077717b303fcb26d0c

.gitignore

@@ -11,6 +11,9 @@ mahara-*.zip
 /test/selenium/TestSuite.html
 /test/selenium/results.html
 /test/selenium/*/index.html
+/test/.project
+/test/.buildpath
+/test/.settings
 /configure-stamp
 /debian/files
 /debian/mahara-apache.postinst.debhelper