Improve delgation from class to default client. Drop support of Ruby …

…1.9 (centrifugal#10)

* Improve delgation from class to default client
* Requiring secure random explicitly
* Removed 1.9.3 from travis

Version 1.1.1

Version 1.1.0

Version 1.0.1

Version 1.0.0

Version 0.1.0

Version 0.0.5

Version 0.0.4

Version 0.0.3