New report that Repo Map, a jtreemap-based report (applet) that shows the
entire source tree in a hierarchical manner, the size of each box is related
to LOC and the colour to the changes over the last 30 days (red -loc, green
+loc).
This class receives information from the (@link net.sf.statsvn.input.SvnXmlRepositoriesFileHandler)
to build a DOM-based XML structure containing the names of all repositories and associated line counts xml files.