Fix CI on Travis

No support for PHP 7.2 (travis)

Expiration time (jasny#62)

Expose cookie life time parameter to customize it. Default is 3600.
Minor fixes for code quality

Require jasny/validation-result v1.x

Merge pull request jasny#38 from subdee/cookie-path

Specify path for cookie in order to remove it properly afterwards

Merge pull request jasny#37 from jasny/fix-sso-broker

Remove call fail

Merge pull request jasny#36 from jasny/remote-clientip

Remove client ip address from session

Merge pull request jasny#22 from sven4ask/master

Bump version of desarrolla cache

Make it possible to use Server as library rather than controller

Added option to fail with exception
Make startBrokerSession public

Run arbitrary command through magic __call method in Broker

By default functions are done as POST request: eg POST /sso?command=foo
A function named `getFoo()` does the request GET /sso?command=foo
A function named `deleteFoo()` does the request DELETE /sso?command=foo

Don't mix user and broker sessions