fix extractAndBuild scripts

The extractAndBuild scripts need the following improvements:

1. since the builds for uima-as and the sandbox require that these projects be in the same directory as the base uima, fix the script to extract into a subdir of the base uima extraction, and then copy into the same base uima dir.
2. The scripts have been failing when it comes to doing the doc building, because they are missing saxon, jai, and the docbook 4.5 xml files; the script tries to get these from the internet (with permission) but fail on the 2nd request due to a problem of getting Ant I/O to the "console" to work more than once when Ant is invoked from maven. Also, it's a nuisance. Change this to attempt to copy over any of this tooling that might be in the same projects that contain the "extractAndBuild" scripts in the first place. So - if you've fixed those up once, these will be reused.
3. regularize the arguments - so they all take 2 args for the release and release-candidate, so all extractAndBuild args are the same.
4. for the sandbox build - fix the assembly to include the -N parameter - no need to build twice.