Initial: deselect on row/column removal
Toolbar column/row add/remove only calls when selection collapsed.
Correction in mergeRow docstring.
Semantic fix in mergeRow.
Use .deselect() in table operations.
Table tests: replace testTable with manipulationTestHelper.
Merge branch 'moveSelector' into row-and-column-remove-deselect
Rewrite testTableTab to use manipulationTestHelper
Revert "Toolbar column/row add/remove only calls when selection collapsed."

This reverts commit ce9bbe48cd93d103e0ca36e0bf1f5afe1e027c72.
Merge branch 'doesElementContainSelection_master' into table-fixes
remove(Row/Column) deselects. Includes tests.
Merge branch 'doesElementContainSelection_master' into table-fixes
Merge branch 'doesElementContainSelection_master' into table-fixes
Merge branch 'master' into table-fixes
Merge pull request #635 from wymeditor/table-fixes

Table manipulations and selection