fix: Use a reasonable default changeset url

Also, warn user if there are modification in the working copy
chore: Use npm for published deps
docs: Changelogs go to "changelogs" by default

Not "changelog"
fix: Correctly parse svn version and run tasks

`grunt.task.run` queues up tasks to be run *after* the current task completes.
Code was assuming those tasks would execute synchronous as called.
chore: Bump version for release

Update dependency versions