alt-dd packaging plugin patch 1260

[si...@godik.com]

David J, please review and apply patch 1260

this is patch for packaging plugin
this patch enables <alt-dd> element replacement in the deployment plan
to enable alt-dd processing set geronimo.packaging.altdd.enable=true in the project.properties file
search path for the replacement plans is defined by the geronimo.packaging.altdd.searchPath property wich is set to ${geronimo.packaging.srcDir} by default
you can exclude alt-dd elements from substitution by defining geronimo.packaging.altdd.excludePatterns property which by default excludes meta-inf dir
(see plugin.properties)
alt-dd processing is recursive
alt-dd element is substituted with a plan, so you can insert alt-dd elements in the plan even if schema does not allow it

Simon