First work to deal with a path
Adding to an existing PATH now works
For simple var setting, if there is no change, don't alter the output file.
If something is already in the PATH, don't update the file.
Update the user options file when we build.
Minor code reorg
Further code cleanup
Switch to proper version of ROOT.
Update instructions on use
Incrememnt the version number.
Ignore exe files
This will go somewhere, eventually...

Just not yet.