Updated definition of project root detection
Updated definition of project root detection

Fixes #53

mopemope/gb,hyper-carrot/gb,acasajus/gb,tbruyelle/gb,tianon/gb,constabulary/gb,ches/gb,MerlinDMC/gb,tbruyelle/gb,davidkaya/gb,URXtech/gb,guiquanz/gb,davidkaya/gb,Luit/gb,constabulary/gb,inconshreveable/gb,lparkes/gb,tianon/gb,hyper-carrot/gb,constabulary/gb,inconshreveable/gb,mopemope/gb,mopemope/gb,ches/gb