wrap cvhooks in if (activated)
will prevent meaningless chat messages if the associated convars are changed after the plugin has been dis-enabled
set playing to true in NewGame() r.e issue 41
Merge branch 'development'
Merge pull request #45 from daniel-murray/master

Group of small fixes

* wrap cvhooks in if (activated) will prevent meaningless chat messages if the associated convars are changed after the plugin has been disabled
* set playing to true in NewGame() r.e issue 41