Generating true random v4 UUIDs.

This also makes the String::uuid() 3 times faster
Specifying the uuid version we generate
blacklist getOptionParser to prevent:

	Console/cake orm_cache<tab>
	build            clear            getOptionParser
Merge pull request #4365 from AD7six/3.0-blacklist-GOP

blacklist getOptionParser
Merge pull request #4362 from cakephp/3.0-random-uuids

Generating true random v4 UUIDs.
Added missing period in Behavior class
Merge pull request #4367 from bcrowe/3.0-missing-period

3.0 - Added missing period in Behavior class
Merge branch '3.0' of https://github.com/cakephp/cakephp into 3.0