increase test level so file/line number is correct for failing tests
Need new Pod::Spell for each file

It's incorrect to create a singleton Pod::Spell object.  This ensures
a fresh Pod::Spell is used.

Users of custom Pod parsers are warned to do that themselves.
Lower case stopwords should match any case error
Merge pull request #5 from dagolden/topic/fix-stopword-bugs

Fix stopword bugs
Diag which spellchecker you've got
0.18 and its changes
Merge pull request #4 from karenetheridge/topic/test_level

increase test level so file/line number is correct for failing tests
Have these modules return true values
Note Karen's branch