Pre-compiling and the incanter-core build target

[liebke]

The build process now pre-compiles the Incanter *.clj files using :gen-
class. Previously they were just included in the jar and compiled at
runtime.

I have also added a new ant target, called incanter-core, that builds
an incanter.jar that only includes the 'core' and 'stats' libraries
and therefore only depends on clojure.jar and the Parallel Colt jars
in the ${INCANTER_HOME}/lib directory (i.e. colt.jar, netlib.jar,
arpack-combo.jar).

Incanter-core is intended for back-end processing where charts and
visualizations are not required (e.g. Hadoop/Cascading jobs).

David

[bradford cross]

U rock!