Merge pull request #79 from duarten/master

Adding support for admin_state_up flag
Added support for the admin_state_up flag.

Change-Id: If4da6581dc2d3e9426d2a085e2cbc3d88ba9cd75

Conflicts:

	doc/midonet-cli-router.1.ronn
Enable deferred creation of router ports.

Change-Id: I41ed18a54a420d411cec346d167d385016685545
Added setters for router filters
Merge pull request #86 from abel-navarro/router_chain

Added setters for router filters