Cursor position bug when updating WPView shortcode in 4.7.4 RC

[bduclos]

Using WP 4.7.4 RC, when updating a gallery/video/audio shortcode, the cursor is placed at the bottom of the editor which in some cases could result in the editor jumping to the bottom. Up to 4.7.3, after updating a shortcode its view was still selected.

[swissspidy]

The relevant change: #40305 ([40419]).

[azaozz]

In 40480.patch:

• After updating a wpview instance, select the node again. The selection is lost when the editor is blurred (when opening the media modal, etc.).
• Fix hiding the toolbar on blur.

[lukecavanagh]

40480.patch​ Applies cleanly.

[azaozz]

In 40481:

TinyMCE: Fix cursor position after updating a wpview node. Fix hiding the inline toolbar on editor blur.

Props iseulde, azaozz.
Fixes #40480 for trunk.

[azaozz]

Reopen for the 4.7 branch.

[azaozz]

In 40482:

TinyMCE: Fix cursor position after updating a wpview node. Fix hiding the inline toolbar on editor blur.

Props iseulde, azaozz.

Merges [40481] to the 4.7 branch.
Fixes #40480.