fix channel names bug

now gives Channel1 and Channel2
instead of 2x Channel 1... but its still not the image names...
so yet to fix is make it use the real image names.
bug fix channel names

same bug as last commit in the next version of the same method name...
get image names and use them in output

made two new protected String variables here to store the image names
gotten from the image plus get title method,
before they get imglib wrapped,
after which the image name seems to be not accessible
from some img. method :-(
send coloc numerical results to IJ.log for scraping batch results

ok, so its not pretty, but at least now
you can get a results comma separated values text file
by saving the IJ.log window contents