added support for automatic groups of concepts

using the --groups parameter
added swco grouping example
* replaced template parameter system with explicit parameters in the
style
of %parameter%
* added optional startarguments "specurl" and "name" that can be used to
replace corresponding template parameters.
* automatic replacement of ontology-uri parameter (%ns%), %date%,
%specurl%, %name% .... 
* created new plain template in RDFa Style, out of the olo template.
* example of the swco ontology with this new template
* fixed olo template using the basic parameters %azlist %termlist
%concepttypes
added foaf example
template typo
Merge pull request #9 from kitha/master

automatic groups extension + new parameter system (pull request #9)