Hard vs. Soft failures

Merge pull request #8 from dscottboggs/feature/hard-vs-soft-failures

Add option to fail immediately on first error

Better error logging

Merge pull request #7 from dscottboggs/fix/better-error-logging

Better error logging

Regexp matching, better error handling, and more

Look, I realize this is a breaking change, and I wouldn't have made it in a 1.1 release if there were literally one star on this repo. But as far as I can tell, I'm the only user of this library as of yet, and also I want to save v2 for the Go 2 release which will be so much better than anything possible with Go 1.x.

Anyway, uh, ✌️. Enjoy.

1.0 release, stable API

Final breaking changes to error handler functions

Test.Handle() which prior to this accepted multiple errors, now only 
accepts a single error and an optional message, behavior previously 
assigned to Test.MessageHandle().
This does not break most cases, as most of the time one only passes a 
single error to Test.Handle(). However, any tests which passed multiple 
errors (specifically tests which pass an error as the second argument to 
Test.Handle()) will now fail unconditionally.

If you need to handle multiple errors at once, use the new 
Test.HandleMultiple(...error).