Added some methods to CropBox to make it easier to test
Added some methods to CropBox to make it easier to test

davecranwell/wagtail,benemery/wagtail,darith27/wagtail,jnns/wagtail,dresiu/wagtail,taedori81/wagtail,jorge-marques/wagtail,jnns/wagtail,Tivix/wagtail,rsalmaso/wagtail,100Shapes/wagtail,timorieber/wagtail,quru/wagtail,nrsimha/wagtail,Klaudit/wagtail,hanpama/wagtail,hamsterbacke23/wagtail,taedori81/wagtail,nutztherookie/wagtail,mikedingjan/wagtail,dresiu/wagtail,dresiu/wagtail,rv816/wagtail,bjesus/wagtail,chrxr/wagtail,jordij/wagtail,takeshineshiro/wagtail,rsalmaso/wagtail,chimeno/wagtail,wagtail/wagtail,rv816/wagtail,gasman/wagtail,iho/wagtail,kaedroho/wagtail,rjsproxy/wagtail,FlipperPA/wagtail,benjaoming/wagtail,mixxorz/wagtail,jnns/wagtail,iho/wagtail,thenewguy/wagtail,Tivix/wagtail,mixxorz/wagtail,takeshineshiro/wagtail,nealtodd/wagtail,janusnic/wagtail,iansprice/wagtail,JoshBarr/wagtail,Pennebaker/wagtail,tangentlabs/wagtail,thenewguy/wagtail,hanpama/wagtail,mixxorz/wagtail,marctc/wagtail,nimasmi/wagtail,jorge-marques/wagtail,rjsproxy/wagtail,serzans/wagtail,hanpama/wagtail,iansprice/wagtail,jordij/wagtail,taedori81/wagtail,timorieber/wagtail,mephizzle/wagtail,wagtail/wagtail,inonit/wagtail,rjsproxy/wagtail,takeshineshiro/wagtail,JoshBarr/wagtail,darith27/wagtail,gogobook/wagtail,100Shapes/wagtail,gasman/wagtail,darith27/wagtail,kaedroho/wagtail,bjesus/wagtail,hamsterbacke23/wagtail,kurtrwall/wagtail,jordij/wagtail,nealtodd/wagtail,serzans/wagtail,iansprice/wagtail,wagtail/wagtail,benemery/wagtail,rsalmaso/wagtail,quru/wagtail,kaedroho/wagtail,mayapurmedia/wagtail,mixxorz/wagtail,jnns/wagtail,timorieber/wagtail,mephizzle/wagtail,nilnvoid/wagtail,KimGlazebrook/wagtail-experiment,rv816/wagtail,davecranwell/wagtail,mjec/wagtail,jorge-marques/wagtail,mjec/wagtail,Tivix/wagtail,iho/wagtail,inonit/wagtail,gasman/wagtail,bjesus/wagtail,gasman/wagtail,nutztherookie/wagtail,stevenewey/wagtail,Klaudit/wagtail,Klaudit/wagtail,tangentlabs/wagtail,rjsproxy/wagtail,thenewguy/wagtail,chrxr/wagtail,takeshineshiro/wagtail,mjec/wagtail,thenewguy/wagtail,quru/wagtail,torchbox/wagtail,Tivix/wagtail,tangentlabs/wagtail,inonit/wagtail,kurtw/wagtail,willcodefortea/wagtail,thenewguy/wagtail,willcodefortea/wagtail,iansprice/wagtail,nilnvoid/wagtail,zerolab/wagtail,mephizzle/wagtail,Pennebaker/wagtail,FlipperPA/wagtail,nrsimha/wagtail,benjaoming/wagtail,mayapurmedia/wagtail,WQuanfeng/wagtail,Toshakins/wagtail,bjesus/wagtail,Toshakins/wagtail,iho/wagtail,WQuanfeng/wagtail,jorge-marques/wagtail,kurtw/wagtail,torchbox/wagtail,rsalmaso/wagtail,FlipperPA/wagtail,nilnvoid/wagtail,benemery/wagtail,Klaudit/wagtail,m-sanders/wagtail,m-sanders/wagtail,dresiu/wagtail,rv816/wagtail,janusnic/wagtail,hanpama/wagtail,torchbox/wagtail,dresiu/wagtail,serzans/wagtail,mikedingjan/wagtail,chimeno/wagtail,marctc/wagtail,KimGlazebrook/wagtail-experiment,janusnic/wagtail,kurtw/wagtail,chimeno/wagtail,nimasmi/wagtail,davecranwell/wagtail,zerolab/wagtail,kurtrwall/wagtail,stevenewey/wagtail,gogobook/wagtail,kurtrwall/wagtail,mikedingjan/wagtail,mjec/wagtail,jorge-marques/wagtail,rsalmaso/wagtail,chrxr/wagtail,nilnvoid/wagtail,chimeno/wagtail,KimGlazebrook/wagtail-experiment,taedori81/wagtail,nutztherookie/wagtail,kaedroho/wagtail,taedori81/wagtail,m-sanders/wagtail,KimGlazebrook/wagtail-experiment,nrsimha/wagtail,kaedroho/wagtail,Toshakins/wagtail,mayapurmedia/wagtail,Pennebaker/wagtail,takeflight/wagtail,benemery/wagtail,wagtail/wagtail,takeflight/wagtail,mikedingjan/wagtail,gasman/wagtail,stevenewey/wagtail,nimasmi/wagtail,chrxr/wagtail,mixxorz/wagtail,willcodefortea/wagtail,WQuanfeng/wagtail,willcodefortea/wagtail,mayapurmedia/wagtail,chimeno/wagtail,nealtodd/wagtail,JoshBarr/wagtail,jordij/wagtail,hamsterbacke23/wagtail,benjaoming/wagtail,marctc/wagtail,m-sanders/wagtail,nealtodd/wagtail,darith27/wagtail,WQuanfeng/wagtail,takeflight/wagtail,torchbox/wagtail,tangentlabs/wagtail,kurtrwall/wagtail,Pennebaker/wagtail,davecranwell/wagtail,hamsterbacke23/wagtail,nimasmi/wagtail,stevenewey/wagtail,gogobook/wagtail,benjaoming/wagtail,kurtw/wagtail,mephizzle/wagtail,inonit/wagtail,zerolab/wagtail,JoshBarr/wagtail,nrsimha/wagtail,Toshakins/wagtail,FlipperPA/wagtail,100Shapes/wagtail,marctc/wagtail,timorieber/wagtail,nutztherookie/wagtail,wagtail/wagtail,takeflight/wagtail,zerolab/wagtail,gogobook/wagtail,zerolab/wagtail,serzans/wagtail,janusnic/wagtail,quru/wagtail