Merge pull request #67 from Nico0084/master

Fix some limitatins on starting domogik.
Scenarios: Fixed missing next statement, in json
Doc : workflow for plugin development with git and branches and release tasks
Doc : workflow for plugin development with git and branches and release tasks
Doc : workflow for plugin development with git and branches and release tasks
Doc : workflow for plugin development with git and branches and release tasks
Doc : workflow for plugin development with git and branches and release tasks
Manager : complete plugin.start.result and handle unknown plugin exception
Doc : start to work on the MQ doc with apidoc
doc : MQ doc with apidoc
doc : MQ doc with apidoc
Doc : MQ doc with apidoc
doc : MQ doc with apidoc
doc : MQ doc with apidoc
remove bootstrap-notify plugin, replaced with pnotify. Added some rest docs for sensorhistory
finished the device apidoc
moved device.delete to dbmgr
doc : MQ doc with apidoc
Manager : new plugin is set as stopped instead of unknown status
dmg_package : add upgrade option. Fix #2018