Remove spurious resurrection of src/swing.
Prepare maven-based distribution building.

NOTE: `maven/latest/build.xml` is now deprecated.

To publish a Scala build, simply call `ant publish` or `ant publish.local`.
`maven/latest/build.xml` is no longer created in `dists/`

The idea is that a Scala distribution is a simple
repackaging of artifacts already available on maven.

Already available: typical jars for the artifacts (classes, sources, scaladoc).
To add: the bin/, doc/, and man/ directories.

Thus, move the contents that should end up in the distribution
from docs/ to doc/, create the man/ directory with the manpages,
and include the scripts in bin/.

Next up: package these directories in a jar and publish to maven,
with a dependency on scala-library-all, scala-reflect and scala-compiler,
for the jars that should end up in the distribution.

Refactorings:
 - Pull filter-pom out from deploy-one.
 - Rename maven-base to dist.maven.
 - Set all properties in the init target (dist.maven)
scala-dist: all you need to roll your own scala distribution

packed and published
up next: add the scala-library-all indirection layer (pom only artifact)

Remove @{dir} abstraction.

Align maven-deploy and build-ant-macros; can't wait to nuke the latter.
scala-library-all