Version bump to 0.3.0.
Allow using .local/share/ruby-advisory-db if it exists.
Fixed a syntax error that caused vim-ruby to segfault. O.o
Added Database.update!
Added an update task.
Add gems/ to the Database path in each_advisory_path/each_advisory_path_for.
Let git handle printing the error.
Converted Database::PATH to Database.path.
Simplified.
Added Database#timestamp.
Use Dir.chdir.
chdir into the database before running invoking git.
Move the timestamp logic into Database.default.
Renamed Database.default back to path.
Put the update task in the db namespace.
Updated ruby-advisory-db
Added a `bundle-audit update` example.
Updated the Gemfile for the secure bundle.
Updated the integration spec for checking an unpatched bundle.
Updated the ChangeLog for 0.3.0.