Refs #10438. Added test with a WorkspaceGroup.
Refs #10438. Don't run validateInputs on WorkspaceGroups.

Instead wait for the inner loop over workspaces in the group.
Refs #10438. Added checGroups to IAlgorithm.
Refs #10438. Don't validateInputs for WorkspaceGroups in gui.
Merge remote-tracking branch 'origin/master' into bugfix/10438_validate_group_ws
Merge remote-tracking branch 'origin/master' into bugfix/10438_validate_group_ws
Refs #10438. Get rid of warning in windoze builds
Revert "Refs #10438. Get rid of warning in windoze builds"

This reverts commit 9e779f0826cdfe9c48f859a3d3bb7ec0392c71ad.
Revert "Refs #10438. Don't validateInputs for WorkspaceGroups in gui."

This reverts commit 23038acdcf7c668b8dd243b4a9c81f398a4fdfa3.
Revert "Refs #10438. Added checGroups to IAlgorithm."

This reverts commit 8e55e36c6fa89795aa6a09bbb662538a4c936913.
Merge remote-tracking branch 'origin/master' into bugfix/10438_validate_group_ws
Refs #10438. Adjusted validateInputs in algorithms.

This was done with an eye towards providing some level
of validation when possible.
Merge pull request #60 from mantidproject/bugfix/10438_validate_group_ws

WorkspacesGroup passed into validateInputs causing segfaults