enforced use of steamtools
also removed bool:cvar_enabled in favour of GetConVarBool(cv_enabled)
in an attempt to narrow the issue around game desc
import atomics bd4bfe6910
added a call to StopPlugin() if cv_enable == 0
commented out uneeded gamedescription function
changed hud text from The Hidden : 1xx% to Hidden Health : 1xx%
Merge pull request #26 from daniel-murray/master

Merge changes via Dan

added call to StopPlugin() if cv_enable == 0
commented out uneeded gamedescription function