* Add Shinken features for Nagvis
fix URI generation when using datasource, _GRAPHITE_PRE and _GRAPHITE_post
Add : new way of parsing the complex expressions for hostgroups and templates. Fix #676  Need some cleanup and refactoring.
Merge branch 'master' of github.com:naparuba/shinken
Enh : remove useless code now.
Enh : cleaning and refactoring of the new compex expression matching.
Add : test case for comprex expression and multi () levels.
use _GRAPHITE_PRE from host, and _GRAPHITE_POST from service
Merge pull request #709 from N-Mi/master

This is a fix for bug #695
Enh : Remove useless code from schedule() that was not useful for solving graphite data lost. So Fix #629 with the minimum code possible.
Merge branch 'master' of github.com:naparuba/shinken
Fix : too much notification protection was a bit too protective. We are using now instead of a future time when we think the value is load from retention and is just too old.
Add : Nicolas Pichon to the THANKS file
Fix : revert the b8e068969ffa9fd311dad765489e912feca64e5f commit because it make 2 notifications launched when restart after a long time instead of just one. Fix the test by waiting a bit longer instead.
Enh: Better handling of Carbon connection. Need a better buffering now :)
Fix indent
Merge pull request #701 from titilambert/Patch_for_nagvis

* Add Shinken features for Nagvis
Add SO_REUSEADDR to nsca sock to allow fast stop/start