uuid provider and test
simplified uuid generation, fixed comments
Merge pull request #1 from foobugs/uuid-provider

Uuid provider
Kindly asking travis to test again

Made a comment for explicit
32bit compat fix

Using PHP_INT_MAX caused uuid sequences that depend on word size.
Adjusted test to new seed range.
Fixed range mistake.
added uuid to default providers
Merge pull request #106 from foobugs/master

uuid provider