Android Client:

• Use microseconds at all duration histograms.

iOS Client:

• Added DivReporter.reportAction(context).
• Fixed an issue with visibility actions triggering on elements in an invisible container.
• Fixed scrolling issues in paginated galleries.
• Supported item_spacing and line_spacing in div-container.
• Supported substrate_div in tooltips.

Web Client:

• Check whether action is enabled right before execution.