Helix API changes

New Methods

 * xbmc.Monitor.onCleanStarted
 * xbmc.Monitor.onCleanFinished
 * xbmc.Monitor.onDPMSActivated
 * xbmc.Monitor.onDPMSDeactivated
 * xbmc.Monitor.abortRequested
 * xbmc.Monitor.waitForAbort
 * xbmcgui.ListItem.setSubtitles

Deprecated Methods

 * xbmc.abortRequested, use Monitor.waitForAbort
 * xbmc.Monitor.onDatabaseScanStarted, renamed onScanStarted
 * xbmc.Monitor.onDatabaseUpdated, renamed onScanFinished

New
New parameter showdialogs. Whether to show progress bar and other dialogs. Defaults to true.

Changed
Using  to call service addons, plugins and other non-script addons is deprecated. Add  or   extension point if addon should be runnable via RunScript.

Changes to python path
All installed module addons are no longer added to the python path, only those imported in Addon.xml. If you use  with a file path and depend on other installed module addons this behavior is deprecated. Add  or   extension point and call RunScript with the addon ID instead.

Window IDs
See Window IDs

Changes to the skinning engine
See http://forum.kodi.tv/showthread.php?tid=194515