fix small typo
Merge pull request #203 from peter1000/patch-1

fix small typo
adds an option to move test file locations. closes #213.
adds test dir support for dtypes
testroot->testdir
all tests pass, closes #198
tutorial typo
Merge pull request #215 from gidden/tut

tutorial typo
possible fix for multiple registrations
fixed recursive issue.
Merge pull request #216 from scopatz/multiauto

Fix for multiple registrations when using autoall