Rename plugin and feature to "Dependency Analytics"

[nickboldt]

Per discussion w/ @Mistria, @BoDavis and @jeffmaury, plugin should be relabelled so people know what it does. Not everyone knows what fabric8 is, but dependency analytics is a more descriptive name.

[nickboldt]

See also https://issues.jboss.org/browse/JBIDE-26463 and https://issues.jboss.org/browse/JBIDE-26464

[nickboldt]

Here's a PR for you:

#179