Merge pull request #46 from jhallbachner/master

Add Ephemeral to the Handlers class
Added a NullHandler (named "BlackHole", since Null is a reserved word)
tests/bootstrap.php now works with the composer autoloader
Fixed travis config
Merge pull request #47 from PERBILITY/master

Added NullHandler with Tests
Fixed typos
Merge pull request #48 from pborreli/typos

Fixed typos
Simplified Pool creation by adding constructor

It's now possible to pass the driver/handlers in as part of the
constructor, simplifying the creation of the Pool object a bit.
Changed name of Stash\Cache to Stash\Item

The "Cache" item was originally created before the separation of the
Pool and Item was made, and had it's old name mostly as a result of
that. This change should help distinguish the roles between the Pool
and Item a bit better.
Added composer "vendors" folder from composer.
Removed Box and Manager classes

The Box and Manager classes were remnents from before the Pool class
existed, and are no longer needed.
Changed the name of the MultiHandler to Composite.
Cleaned up some Test class names.
Changed "Handlers" into "Drivers"

The term "handler" has been used to describe the code that provides low
level least common denominator access to the various storage engines
used for caching. Changing them to "drivers" makes it more immediately
obvious what their function is, while also being more consistant with
similar systems.
Finishing last commit

I'm not sure why these files weren't removed with the last commit, but
this was part of that previous commit related to changing "handlers"
into "drivers".
Adding the "report" directory into the git ignore list

The code coverage reports get generated into that folder, and don't
need to be shipped along with this library.
Removed purge function from Item

The purge function was just calling through to it's new home in the
pool class, and removing it makes things a bit cleaner.
Updated docblock
Removed "purge" from Item Test, since the function was removed
Updated Pool class to disable itself when certain errors occur.