Fixing typo in testfile ERB

Hey Ryan (or whomever):

I just got Hoe installed on rvm ruby 1.9.3, used sow, ran autotest, saw it choke on 'Minitest::Unit::TestCase'. Attached is a fix for the typo to 'MiniTest'.

I looked through the tests for Hoe and saw nothing validating the ERB templates or their output. Would it make sense to have some tests that simulate creating a simple project and loading each of the output classes to make sure nothing blows up?