Fixes embedded interface initialization

Attachment API automated testing + related bugfixes

Patches up KMW >= 10.0 layout processing

Report version assigned in decimal, not hexadecimal

[Mac] Detect context changes caused by low level events

Also deleted commented-out code.

Move KMW classes to TypeScript namespaces

Input + Change DOM event support

[Web] Automatic keyboard activation

Removes IE legacy check for touch-based aliases.

Replaced logic in updateContextBufferIfNeeded to be based on tapping of low-level mouse events instead of relying on list of clients that might have unexpected selection changes.

Merge pull request #639 from keymanapp/mac-limit-context-to-eighty-chars-in-browser-client-event-handler

[Mac] Limited context to 80 chars in KMInputMethodBrowserClientEventHandler

I had previously made a change to do this in the base class but overloooked that it was also a factor in this subclass, so I refactored a little to have a single method  in the base class that handles this. (Note: the base class method also checks to be sure that the client responds to the attributedSubstringFromRange method before calling it. This used to be done only in the subclass, but it seems like a useful safeguard in case some other client fails to implement this.

[Android] Fix path of special OSK font used for longpress of special keys