Added some unit tests for quiqkRandom and random methods in  SupportStrTest.php  #5381
Merge pull request #5382 from faridmovsumov/bug/added-unit-tests-for-str-class

Added some unit tests for quickRandom and random methods in  SupportStrTest.php
Working on reminders.
Add a few interfaces to contracts.
Add to replace.
Working on filesystem.
Add contracts dependency.
Update the Travis file of the workbench
fix docblocks in filesystem
Mock StdClass on Memcached get test until memcached extension gets its crap together.
Merge branch '4.2'
Add cache factory contract.
Update config contract name to be more consistent.
Use key instead of password.
Added league/flysystem to illuminate/filesystem.
Fix auth docblocks
$value implements RenderableInterface
Remove useless $app argument
Fix connection binding.
Fix queue connection binding.