Passing options to RegularShape is mandatory
Merge pull request #3002 from elemoine/regularstyle

Passing options to RegularShape is mandatory
Replay replays in correct order for hit detection
Remove unused local variable
Remove unused code in the canvas replay code
More clean-ups in the canvas replay code
Use alphabetical order for canvas ReplayGroup methods
Merge pull request #3009 from elemoine/hitdetectionfix

Fix hit detection bug
opt_options may not be defined, use options

Constructing an instance of `ol.interaction.DragPan` with no options should be possible, the reference to `opt_options` makes this throw an error when no options are passed.
Merge pull request #3011 from pagameba/master

opt_options may not be defined, use options
The writeFeatures method should always return a string
Merge pull request #3003 from bartvde/writefeatures

The writeFeatures method should always return a string (r=@elemoine)
Merge branch 'master' of https://github.com/openlayers/ol3