Update vg-github.py

Fixed the problem to mysql access when the proyect name includes the character '-'.
Migrate refactored MLS version
Fixed cut & paste problem in companiesNames function.
Added people id to tops files for company, repository and country.
Moved mailinglist-analysis.R to mls-analysis.R.
Add Redmine states
Add domain metrics support
Added last activity data to IRC needed for tendencies.
Merge branch 'master' of https://github.com/VizGrimoire/VizGrimoireR
Removed not valid comment.
Added last activity and tendencies functions.
Merge pull request #18 from ccervigon/patch-4

Update vg-github.py so that "-" can be used in project names
Merge branch 'master' into issue-25

Conflicts:
	examples/github/vg-github.py