sf-list-dir - added new tool 'listdir.py' which can exclude a directory and changed the behaviour of sf-list-dir to stop scanning epoc32/build to speed things up.

sf-postbuild - running analysis in parallel with evalid and post-build zipping.

Merge

Simplify the create-canonical-sysdef-file target as we can depend on there only being a single sysdef in the supplied reference.

Simplified create-canonical-sysdef-file so that it's just a simple copy.

Merge

Un-hardwired an interim location for the system definition. Removed a target that is over-ridden in both the platform and package specific files.

Added output of the package definition incorporated for each package.

Added some diagnostic output when the system definition is built from the sources.csv file.

Commented out clean and tools targets. Changed tool2 target into tools2_rel

Removed commented & obsolete code.

Changed preference for selecting package definition files, so that it takes the one from our tree in preference to the one in the package itself. This means that we can just delete items from our tree when we're happy to switch to using the one in the package (as this will vary from package to package). Added sorting of the attributes when outputting the system definition, to match the de facto standard in the system definition we started with.