fix resource deps: generate more cleanly - no targets if there are no prereqs. no empty lines.
fix resource copy performance: remove debug
fix filters: behave if someone puts 2 identically named filters into the plugin dir by mistake.
component build_metadata
source \src\tools\dev\build\build_info\build_metadata
source \src\tools\dev\build\package_definition.xml
source \src\tools\dev\build\distribution.policy.s60
notes_source \component_defs\release.src
ipr T