Version 1.2.0 - May 2014

1. Update configurationClass to allow the 'fail if cannot construct' field in
tool configuration files.

2. If constructing a filename and the values that are to be used for the construction
haven't been set and the 'fail if cannot construct' field is set to true, gkno will
terminate with an error.

3. Updated all configuration files to include the 'help group'.