Add basic reading support for OWS Capabilities document.
Remove commented code
Fix syntax and private functions return values for OWS format
Rename ol.format.OWSCapabilities to ol.format.OWS
More syntax fix for OWS format
Add click event as responsive alternative to singleclick

The singleclick event makes the application feel slow because
of the 250 ms delay that is used to rule out a dblclick.
Add unit tests for click event
Continue using singleclick for getfeatureinfo
Use pointer events for button clicks
Register pointer event handlers as disposable
Merge pull request #1886 from ahocevar/touchend-button

Zoom happens twice on Android browser
Curly instead of bar
Merge pull request #1936 from tschaub/curly

Typo in objectliterals.jsdoc.
Add ol.dom.createCanvasContext2D function
Merge pull request #1934 from fredj/ol.dom.createCanvasContext

Add ol.dom.createCanvasContext function
Set render order to null in ol.layer.Heatmap

For performance reasons: the render order is not relevant for a
heatmap representation and this avoids to sort the features each frame.
Merge pull request #1937 from fredj/heatmap-render-order

Set render order to null in ol.layer.Heatmap
Add method for testing whether the canvas size is valid

This is a way to detect whether a canvas exceeds the maximum
dimensions if these are limited on the target device. See
https://developer.apple.com/library/ios/documentation/AppleApplications/Reference/SafariWebContent/CreatingContentforSafarioniPhone/CreatingContentforSafarioniPhone.html
for limitations on iOS devices.
Allow to make canvas smaller when it is too big

For performance reason, we only make the canvas bigger, but not
smaller. With this change, we also make it smaller, but only
when we know that its current size exceeds the maximum
dimensions.
Change default renderer to Canvas