module googleanalytics and project name google_analytics differ and causes an avoidable confusion in drush dl and drush en

Consider the flow:

drush dl google_analytics
drush en google_analytics -y

When modules and project names differ, the above would fail. Preferable would be sticking to either googleanalytics or google_analytics. I don't know the ramifications of Usage Stats or what, but I would propose that if you do wish to change the name, then preferring "googleanalytics" over "google_analytics" will cause the least amount of hiccup the 1000s of end users' installations! :)

See #829430: conforming to a single project name BookMadeSimple vs book_made_simple for related info.