Revert "Spec dir() default exclusion to all /^\./"
Revert "Spec dir() default exclusion to all /^\./"

It appears the consensus is to just ignore . and ..

This reverts commit 91c184fbb816b642b9ac724db65352e6cfd2eb3a.

tokuhirom/specs,perl6/specs,prammer/specs,prammer/specs,perl6/specs,tokuhirom/specs,prammer/specs,tokuhirom/specs