Add syncs to unmount-chroot to avoid dataloss if umount explodes.
Add syncs to unmount-chroot to avoid dataloss if umount explodes.

It appears that ecryptfs unmount can be unstable if there are large amounts of
stuff to commit. Syncing before and after just helps avoid the problem.

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