bring over the merge query constants from d8
Copy over the destructable interface, but don't implement it yet
Implement specific factory overrides to not require the symfony container interface
fix the KV merge query
Add integration tests for KV
Make it possible to reset the internal state of the container for tests purposes
explain which services are available
Test CachedContainerBuilder::reset
don't hack DatabaseStorageExpirable but override it, in order to not require calling ::keys
ignore a bit more code
Merge branch '7.x-1.x' into KV-tests
use static:: not self::
improve the readme
make the container test variables sane
nitpick
Merge pull request #10 from dawehner/KV-tests

Adds key value integration tests