[cli] Parser breaks up command line parms into single characters

The base Parser class used to pull tokens from a command line breaks up
command line options longer than 1 character. For example, -file becomes -f -
i -l -e. This can be duplicated with the Ant example shown in the user guide.
This is probably the cause for bug
http://issues.apache.org/bugzilla/show_bug.cgi?id=31464 section 1 and 2.

I have worked up a patch that fixes this problem and all of the JUnit tests
run correctly after this patch is applied.

There appear to be some shortcomings in the way the Parser class processes
options. The main problem is that it doesn't maintain a state value indicating
what is being processed so option parameters can be interpreted as options. To
fix this the code needs to be reorganized. Because of this, I can't say this
patch will work in every case but it is an improvement.