Pull in xclip package dependency in extension, improve comments.
Pull in xclip package dependency in extension, improve comments.

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