Add ol3 logo to d3 example
Merge pull request #1509 from tschaub/layer-spy

Example demonstrating a spyglass effect.
Merge pull request #1387 from ahocevar/olx-docs

Documentation error
Merge pull request #1508 from twpayne/vector-api-d3-no-social

[vector-api] Remove social links from d3 example
Merge remote-tracking branch 'openlayers/master' into vector-api
Merge pull request #1510 from tschaub/bing-providers

Handle case where Bing resource has no imagery providers.
Add docs for ol.source.ImageVector
Export ol.source.ImageVector's styleFunction option
Merge pull request #1513 from elemoine/vector-api-docs

[vector-api] ol.source.ImageVector improvements
Create 'type' annotation for 'const' variables
Merge pull request #1515 from fredj/vector-api-const-annotation

[vector-api] Create 'type' annotation for 'const' variables
Use goog.isNull in if statements
Use goog.asserts.assertInstanceof to check the getSource return type

See 1499af397d9852eded193a8b06ea9d8bad71a49f
Merge pull request #1517 from fredj/vector-api-drawinteraction-cleanup

[vector-api] drawinteraction cleanup
Make ol.source.Source inherit from Observable
Add encoding param to goog.fs.FileReader.readAsText

This is a workaround for https://code.google.com/p/closure-library/issues/detail?id=524
Merge pull request #1516 from fredj/vector-api-source-observable

Make ol.source.Source inherit from Observable
Merge pull request #1518 from fredj/vector-api-1503

[vector-api] Add encoding param to goog.fs.FileReader.readAsText
Fix hit detection on retina displays
Add optional URL for logos