Increment version.
Made `freshTimestamp` return a Carbon object instead of DateTime

as Carbon is already used in database I think this is useful for unit testing

I can do `Carbon::setTestNow(Carbon::createFromDate(2000, 1, 1));` to fake the "created_at" field in an easier way.

I hope this will be merged in
Update composer.json

Incorrect syntax for doctrine version selector?
Merge pull request #2269 from MarkOKeeffe/patch-1

Update composer.json
fix conflicts.
Merge pull request #2262 from onigoetz/patch-4

Made `freshTimestamp` return a Carbon object instead of DateTime
Merge branch '4.0'
Add equals to cache store.
Fix a few tests.
Merge branch '4.0'
Fix possible unwanted loading of boolean operator.
Merge branch '4.0'
Typo fix: Increment switched to proper Decrement
Merge pull request #2309 from pmoust/hotfix/apc-decrement

Typo fix: Increment switched to proper Decrement