CMS-4097 ImageSelector - Button for upload has gone missing
CMS-4097 ImageSelector - Button for upload has gone missing - combobox focus problem fixed.
CMS-4126 Introduce ImageCanvas panning

- introduced panning
- introduced mouse wheel zooming
- added zoom/pan/width changed events/setters/getters
- updated styles and position
Renamed some commands.
CMS-4064 Remove Site Templates - enable special rendering of system.page-templates
When changing controller, now regions are not reset, but reused if possible.
CMS-4238 Create mocks for http objects. Starting to use MockServletConfig.
CMS-4064 Remove Site Templates - enable special rendering of system.page-templates
Now the controller config form is also changed when changing controller.
Added comment.
CMS-4064 Remove Site Templates - enable special rendering of system.page-templates
Now the controller config form is also changed when changing controller.
Corrected typing.
CMS-4239 Upgrade to Karaf 3.0.2.
Reverted back to custom Apache Karaf 3.0.1. It's a major bug in 3.0.2.
CMS-4064 Remove Site Templates - enable special rendering of system.page-templates
PageView now shows placeholder if no page controller or page template is set. The placeholder contains a PageDescriptorDropdown which gives the user the possibility to choose a controller.
The PagePlaceholder needs to be styled.
CMS-4120 Metadata Schema - Enable dynamic metadata steps
CMS-4242 Improve DataSet toMap - Let single value also be wrapped in a List
Merge pull request #984 from enonic/CMS-4120

CMS-4120 Metadata Schema - Enable dynamic metadata steps
CMS-4182 TreeGrid - Automatic loading of remaining children

Optimized the post load.
Added `loadBufferSize` parameter to `TreeNodeBuilder` and `TreeNode`.
Added load buffer.
CMS-4182 TreeGrid - Automatic loading of remaining children

Removed `TreeNode.dataId` and replaced them with `TreeNode.id`, that was
randomly generated previously.
CMS-4120 Metadata Schema - Enable dynamic metadata steps
CMS-4231 Validation - Error in input validation should mark the whole input not each occurrence
Added precondition on id to GetContentByIdHandler
Merge pull request #979 from enonic/CMS-4097

CMS-4097 ImageSelector - Button for upload has gone missing