Adding some more specs and more formats:

08.00.2b.01.02.03
08 00 2b 01 02 03
08002b.010203
0800-2b01-0203
0800 2b01 0203
Missed a validation test...
require `rspec/matchers` to eliminate app problems and keep tests passing...
Merge pull request #5 from peelman/add_more_formats

Adding some more specs and more formats