Investigate using/connecting Grimoire Lab tools

[npch]

As suggested by @rgaiacs:

Grimoire Lab is an open source software development analytics toolkit (http://grimoirelab.github.io/) that aims to provide:

1. Automatic and incremental data gathering from almost any tool (data source) related with contributing to Open Source development (source code management, issue tracking systems, forums, etc.)
2. Automatic gathered data enrichment, merging duplicated identities, adding additional information about contributors affiliation, calculation delays, geographical data, etc.
3. Data visualization, allowing filtering by time range, project, repository, contributor, etc.

We should investigate whether we can use some of the Grimoire tools or code to more easily generate metrics for the Software Assessment Framework.