check if temp files exist before trying to remove them; warn about potential mass deletion; wget with unversioned filenames should use -N not -c; install custom stuff to /usr/local; quote some paths; note possible sudo breakage when installed to a VM; fix desktop/menu files (#1152)
check if temp files exist before trying to remove them;
warn about potential mass deletion;
wget with unversioned filenames should use -N not -c;
install custom stuff to /usr/local;
quote some paths;
note possible sudo breakage when installed to a VM;
fix desktop/menu files (#1152)


git-svn-id: 0078f79ef0c13d8ca30f49297e7ed6c465429331@10289 7da46fd8-bd2a-0410-a152-cf9810cf5b10

kalxas/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,PascalLike/OSGeoLive,OSGeo/OSGeoLive,PascalLike/OSGeoLive,guygriffiths/OSGeoLive,OSGeo/OSGeoLive,guygriffiths/OSGeoLive,astroidex/OSGeoLive,kalxas/OSGeoLive,PascalLike/OSGeoLive,astroidex/OSGeoLive,guygriffiths/OSGeoLive,kalxas/OSGeoLive,guygriffiths/OSGeoLive,OSGeo/OSGeoLive,astroidex/OSGeoLive,OSGeo/OSGeoLive,OSGeo/OSGeoLive,kalxas/OSGeoLive,PascalLike/OSGeoLive,OSGeo/OSGeoLive,PascalLike/OSGeoLive,astroidex/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,PascalLike/OSGeoLive,guygriffiths/OSGeoLive,astroidex/OSGeoLive,astroidex/OSGeoLive,guygriffiths/OSGeoLive,PascalLike/OSGeoLive,guygriffiths/OSGeoLive