Refactor SlmQueue to handle more queueing systems
Add methods for queue interface
Refine interfaces
Options
Factorize managers
Update queues
Update composer
Remove old code and more refactoring
Remove unused dependency
Some cleanup
More SQS stuff
Split up refactor
Small alignment issue
Setup basic test structure
More tests
Clean Queue interface and make it work for PHP 53
Update doc
Add options array for push and pop
Clean module
Merge pull request #7 from bakura10/refactor-interfaces

Refactoring : interfaces