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Merge pull request #56 from knewter/feature/code_climate_badge

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Split out database testing into separate CI runs

Fixes #53

Previously, we were running `rake spec:db:all` on CI, which ran our test
suite using mysql, postgresql, and sqlite3, but didn't provide very much
visibility into which databases were passing or failing. This change
moves to using Travis to set a DB environment variable and then running
`rake spec` under each environment.
Add config and gems for running CI under a modern Rubinius
Replace v2 Google Maps with a more flexible leaflet-based mapping system

New options in secrets.yml allow selection of a mapping provider and
tile set from Stamen, MapBox, Google, and others.

This was kicked off by #55, but goes a bit beyond addressing that issue.
[!] Deprecate config/geocoder_api_keys.yml in favor of secrets.yml
Add note about config/geocoder_api_keys.yml to change log
Add appropriately-green map marker
Fix precompiling of leaflet_google_layer.js
Alias MappingHelper#map to #google_map for compatibility
Add a note about mapping js includes for theme authors
Add note about #google_map => #map div renaming
Revert a couple changes due to bad auto-merging
Not all collections passed to wiki partial are AR::Relations

Some tests using search functionality started failing after the merge,
which brought to our attention that not all collection objects passed
to a wiki/metadata partial would be ActiveRecord::Relations.
Merge commit '3fcb316d0542' from 'calagator/master'

Merge CI and rubinius changes
Merge commit '9308b62fe48d' from 'calagator/master'

Merge leaflet/mapping changes from upstream calagator

Conflicts:
	CHANGES.md
	Gemfile
	app/assets/javascripts/application.js
	app/assets/stylesheets/application.scss
	app/views/events/_item.html.erb
	app/views/venues/map.html.erb
	app/views/venues/show.html.erb
	config/application.rb
	config/initializers/geokit.rb
	lib/gmaps_on_rails/lib/google_map.rb
Update Gemfile{,.heroku}.lock files with merged Gemfile changes
Bypass leaflet for now with activate theme and use google maps directly