Initial commit
PRISMA 0.1 package
web update
web update md
Create an abstract clustering class (IssueId #405).

All the clustering algorithms will inherits from this class. Its the official
interface which will be extended.
Add managment methods to add, retrieve and delete available clustering profiles.

Clustering profiles are stored in the current workspace.
MVC pattern for the selection and edition of clustering profiles.
Add the action "Find Similar Messages" which starts the clusteringProfiles MVC.
Add the ClusteringProfiles management glade file.
Allow the specification of clustering algorithms and there attached distance algorithms in a profile.
Update the default list of clustering algorithms in the Workspace.
Create a default clustering profile following Discoverer specifications.
Add the Discoverer Clustering Algorithm.
Verify the algorithm provides a configuration controller before executing it.
Initialize the configurations of the discoverer clustering algorithm.
The Distance and UPGMA Clustering configuration panels.
Include the Tokenization Process in the Discoverer Algorithm
Remove useless var definition.
multiple modifications on the discovery clustering
Edit the distance view to add the ID and the name of every distance algorithm in the liststore.