Merge pull request #634 from wymeditor/moveSelector

Fix `moveSelector`'s `expect()`
Merge branch 'master' into issue_512
Merge branch 'master' into doesElementContainSelection_master
Merge branch 'doesElementContainSelection_master' into table-fixes
doesElementContainSelection: Fix extraneous code execution.
doesElementContainSelection test: non-collapsed twice nested
Merge pull request #637 from wymeditor/doesElementContainSelection_master

`editor.doesElementContainSelection`
Merge branch 'master' into table-fixes
Merge pull request #635 from wymeditor/table-fixes

Table manipulations and selection
Merge branch 'master' into issue_512