unstable documentation:
links towards reference texts describing how gem-graph operates
(and why all the parsed items are useful, compulsory or optional) missing.
links towards description of the gem-graph model structure (and its XML implementation) missing.
Warning about the word 'node': possible confusion between:
- the xml tree 'nodes' used in the model xml file and
- the gem-graph 'nodes' that are local space units used in the geometric space representation
This commit initiates the Gem-graph client development with a simple
main function that initializes a Gtk application (no window yet) and
some XML parsing code, as our application will be able to parse
XML models. This code is inherited from our server project (started before).
Jean Sirmai