Prevent from changing cell properties when the field's value remains unaltered.
Leave the value of the field empty if it'd differ among selected cells.
Extracted getCellWidthType function to allow setting the same width for cells of different widthType.
Changelog entry.
Merge branch 't/11439b'
Focus editor before setting data.
Merge branch 't/11585'
Revert "Merge branch 't/5217b'"

This reverts commit a81e759e3220bc8e6ad30a24d18fc1702f5ff0e6, reversing
changes made to 949b12a6ec804de60dcb12f53a8918ac0015d36b.
Missing API docs in Link plugin added.
Changelog and API docs for 4.3.3 corrected.
Corrected link to jQ adapter.
Updated translations
Merge branch 'master' into major

Conflicts:
	plugins/link/plugin.js