Cleanups saved for a rainy day? Even without being called out via valgrind, these

Cleanups saved for a rainy day?  Even without being called out via valgrind, these
are "obviously" leaks and a cleanup upportunity.
 egrep -- '->(rte_name|rte_desc|rte_url|icon|icon_descr|rte_name|rte_desc|notes|shortname|description) = xstrdup' *.cca
We've eliminated 58% of the calls to xstrdup that we had in 1.4.4..

git-svn-id: http://gpsbabel.googlecode.com/svn/trunk@4712 f51c46e8-681c-474f-0cfe-069cfd0219fb