warn(): Verbosity-level-dependent

git-svn-id: file:///var/svn/freetz/trunk@10809 149334a1-2f27-0410-a3b9-fc62619ac1e6
color for WARNING

git-svn-id: file:///var/svn/freetz/trunk@10810 149334a1-2f27-0410-a3b9-fc62619ac1e6
modsed: "warn" only with verbose>=2 (eg html/lua webif patching)

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add WARNING for "unresolved symbol"

git-svn-id: file:///var/svn/freetz/trunk@10812 149334a1-2f27-0410-a3b9-fc62619ac1e6
add WARNING for "unresolved symbol":
 * correct quotes

git-svn-id: file:///var/svn/freetz/trunk@10813 149334a1-2f27-0410-a3b9-fc62619ac1e6
be sure ./images/ exists

git-svn-id: file:///var/svn/freetz/trunk@10814 149334a1-2f27-0410-a3b9-fc62619ac1e6