Add filtering of command-line scripts

The command-line scripts were modified to include tokens for the
versions of the different libraries, which will change over time and
were out of date. The modified POM now filters the scripts,
substituting in the versions as specified in the POM, and the modified
assembly descriptor includes them in the distribution.
Remove command-line scripts from JAR

The commit that added script filtering inadvertently allowed the
filtered scripts to be included in the Cobertura JAR. This commit
excludes them.
Merge pull request #102 from kbzod/scriptfilter

Use Maven filtering on command-line scripts to set versions properly