Make doesn't check for ant and javac

[bergie]

The requirements check phase of the Makefile doesn't check whether ant and javac can be found from path. This causes failures, like:

BUILD FAILED
/home/bergie/Projects/tmp/UmlCanvas/lib/Canvas2D/lib/yuicompressor-2.4.2/build.xml:23: Unable to find a javac compiler

[christophevg]

From an external viewpoint this is true. The requirement comes from yuicompressor. I'm not sure that I should check for dependencies of dependencies (and in this case even of dependencies ) ;-) I'll see what I can do.