Add skeleton for SLD parser
Add scale to/from resolution calculations
Add initial pass of write support, always write out ol.style.Stroke as  LineSymbolizer
write out string concatenation in the more common way
Add more changes to the  halo functionality, introduce SLD defaults for symbolizers conform the SLD spec
add name and title to ol.style.Rule
get rid of the readers we don't support in ol3 symbology as yet
better write support for PointSymbolizer
deal with elseFilter, some cleanup
Add a separate test case for write
do not hard-code the namespaceURIs multiple times
Add MapGuide untiled map support to ol3.

This adds a new ol.source.MapGuide class that is initialized with an options object that can contain the following values:
 - projection: The projection of the Map Definition in EPSG format
 - url: The mapagent URL
 - useOverlay: Determines whether the GETMAPIMAGE (false) or GETDYNAMICMAPOVERLAYIMAGE (true) will be used for requesting the map image. When using GETMAPIMAGE, you must include a valid MAPDEFINITION parameter in the 'params' option property. When using GETDYNAMICMAPOVERLAYIMAGE, you must include a valid SESSION and MAPNAME parameters in the 'params' option property.
 - metersPerUnit: A required value used for calculating the map scale needed by the image request. This value can be calculated using the MapGuide Web API or obtained through the new CREATERUNTIMEMAP operation in MapGuide Open Source 2.6
 - params: A set of key-value pairs to append to the mapagent request
 - extent: The bounds of the layer

An example is included to demonstrate this new layer source. Like ol2, this example uses the MapGuide Server on data.mapguide.com
Only set interacting hint when modifying the view
Merge pull request #1277 from tschaub/interation-hint

The ol.interaction.Drag subclasses set interacting hint as needed.
Better use of good.dom.createDom in zoom slider
Simplify zoom slider code
Fix issue where map is stuck in drag mode

If the control container stops "up" events the map browser event handler won't see these events and will keep triggering "drag" events.
Do not pretend the zoom slider supports touch
Change ol.control.ZoomSlider#amountDragged_ signature
Handle click on zoom slider