Properly unmount old chroots that are still mounted.
Properly unmount old chroots that are still mounted.

Avoids issues with upgrading.

elkangaroo/chroagh,mkasick/crouton,twmccart/crouton,marriop/newCrouton,twmccart/crouton,ikaritw/crouton,twmccart/crouton,taterbase/crouton,djmrr/crouton,dnschneid/crouton,marriop/newCrouton,dnschneid/crouton,ikaritw/crouton,Timvrakas/crouton,StrawnPoint04/crouton,edge226/celce,zofuthan/crouton,StrawnPoint04/crouton,fxcebx/crouton,arbuztw/crouton,nromsdahl/crouton,rperce/chroagh,brayniac/crouton,stephen-soltesz/crouton,marriop/newCrouton,taterbase/crouton,arbuztw/crouton,brayniac/crouton,tedm/crouton,Timvrakas/crouton,VandeurenGlenn/crouton,brayniac/crouton,mkasick/crouton,nromsdahl/crouton,arbuztw/crouton,jamgregory/crouton,stephen-soltesz/crouton,DanDanBu/crouton,twmccart/crouton,mkasick/crouton,jamgregory/crouton,stephen-soltesz/crouton,brayniac/crouton,tedm/crouton,tonyxue/cruise,DanDanBu/crouton,StrawnPoint04/crouton,dragon788/chroagh,fxcebx/crouton,Timvrakas/crouton,jamgregory/crouton,dragon788/chroagh,zofuthan/crouton,twmccart/crouton,rperce/chroagh,tonyxue/cruise,taterbase/crouton,JDGBOLT/chroagh,elkangaroo/chroagh,StrawnPoint04/crouton,StrawnPoint04/crouton,tedm/crouton,tedm/crouton,fxcebx/crouton,zofuthan/crouton,armgong/chroagh,VandeurenGlenn/crouton,JDGBOLT/chroagh,tonyxue/cruise,dnschneid/crouton,jamgregory/crouton,StrawnPoint04/crouton,JDGBOLT/chroagh,djmrr/crouton,arbuztw/crouton,Timvrakas/crouton,elkangaroo/chroagh,VandeurenGlenn/crouton,dragon788/chroagh,elkangaroo/chroagh,nromsdahl/crouton,twmccart/crouton,rperce/chroagh,stephen-soltesz/crouton,Timvrakas/crouton,tedm/crouton,nromsdahl/crouton,arbuztw/crouton,DanDanBu/crouton,rperce/chroagh,dnschneid/crouton,armgong/chroagh,nromsdahl/crouton,mkasick/crouton,VandeurenGlenn/crouton,nromsdahl/crouton,DanDanBu/crouton,armgong/chroagh,dragon788/chroagh,djmrr/crouton,stephen-soltesz/crouton,dnschneid/crouton,edge226/celce,elkangaroo/chroagh,elkangaroo/chroagh,stephen-soltesz/crouton,tonyxue/cruise,VandeurenGlenn/crouton,taterbase/crouton,fxcebx/crouton,JDGBOLT/chroagh,edge226/celce,tedm/crouton,ikaritw/crouton,JDGBOLT/chroagh,arbuztw/crouton,ikaritw/crouton,DanDanBu/crouton,ikaritw/crouton,armgong/chroagh,brayniac/crouton,djmrr/crouton,ikaritw/crouton,jamgregory/crouton,JDGBOLT/chroagh,dnschneid/crouton,mkasick/crouton,armgong/chroagh,fxcebx/crouton,tonyxue/cruise,fxcebx/crouton,taterbase/crouton,mkasick/crouton,zofuthan/crouton,rperce/chroagh,DanDanBu/crouton,dragon788/chroagh,zofuthan/crouton,jamgregory/crouton,taterbase/crouton,tonyxue/cruise,djmrr/crouton,rperce/chroagh,dragon788/chroagh,zofuthan/crouton,brayniac/crouton,armgong/chroagh,VandeurenGlenn/crouton,djmrr/crouton,Timvrakas/crouton