[is.gd] Added ruleset for both is.gd and v.gd.
[v.gd] Split into its own ruleset.
[is.gd] Removed extra s?.
[v.gd] Removed extra s?.
Merge pull request #667 from jpds/is.gd-rule

[is.gd] Added ruleset for both is.gd and v.gd.