Update README LDAP instructions [ci skip]
Update README LDAP instructions [ci skip]

The instruction for the User model save hook don't work with the current versions of errbit and devise_ldap_authenticatable.

This updates the code to use the initialization hook provides by the devise_ldap_authenticatable gem and also set the name, so validations in errbit pass.

alphagov/errbit,francetv/errbit,fireho/errbit,errbit/errbit,damau/errbit,KomalDhanwani/errorinspector,diowa/errbit,denyago/errbit,Cloud-Temple/errbit,shivanibhanwal/errbit,disvelop/errbit,rightscale/errbit,fireho/errbit,assetricity/errbit,subvisual/errbit,sinrutina/errbit,pandora2000/errbit,fusco/errbit,CarlosCD/errbit,shyftplan/errbit,damau/errbit,threatsim/errbit,mak-it/errbit,notch8/errbit,arrowcircle/errbit,ZeusWPI/errbit,alphagov/errbit,huangxiangdan/errbit,burningpony/errbit,bonanza-market/errbit,bengler/errbit,linki/errbit,dwilkie/errbit,appdate/errbit,Strnadj/errbit,Stackato-Apps/errbit,mvz/errbit,jordoh/errbit,3zcurdia/errbit,ndlib/errbit,sideci-sample/sideci-sample-errbit,wombatsecurity/errbit,chautoni/mingle-errbit,huangxiangdan/errbit,huangxiangdan/errbit,14113/errbit-1,assetricity/errbit,shivanibhanwal/errbit,griff/errbit,gravity-platform/errbit,joshuaswilcox/Errbitstrap,peertransfer/errbit,Promptus/errbit,steveyken/errbit,jordoh/errbit,disvelop/errbit,fxposter/errbit,sideci-sample/sideci-sample-errbit,vinco/errbit,otzy007/errbit,accessd/errbit,rightscale/errbit,Undev/errbit,peertransfer/errbit,3zcurdia/errbit,jaronkk/errbit,gravity-platform/errbit,griff/errbit,Stackato-Apps/errbit,diowa/errbit,rightscale/errbit_old,diowa/errbit,mvz/errbit,cph/errbit,linki/errbit,Undev/errbit,iFixit/errbit,shyftplan/errbit,sinrutina/errbit,fxposter/errbit,otzy007/errbit,ninech/errbit,francetv/errbit,vinco/errbit,arrowcircle/errbit,felixbuenemann/errbit,projectdx/errbit,bengler/errbit,ninech/errbit,mvz/errbit,KomalDhanwani/errorinspector,espnbr/errbit,pandora2000/errbit,stevecrozz/errbit,micred/errbit,12spokes/errbit,salemove/errbit,Promptus/errbit,Undev/errbit,peertransfer/errbit,cognoa/errbit,mikk150/errbit,subvisual/errbit,Cloud-Temple/errbit,steveyken/errbit,deskrock/errbit,cph/errbit,Strnadj/errbit,rud/errbit,francetv/errbit,espnbr/errbit,mikk150/errbit,14113/errbit-1,12spokes/errbit,rud/errbit,alphagov/errbit,cph/errbit,PeggApp/pegg-errors,damau/errbit,CarlosCD/errbit,rightscale/errbit,rightscale/errbit_old,bengler/errbit,mak-it/errbit,Strnadj/errbit,Promptus/errbit,joshuaswilcox/Errbitstrap,deskrock/errbit,threatsim/errbit,chautoni/mingle-errbit,espnbr/errbit,fusco/errbit,gravity-platform/errbit,cognoa/errbit,mikk150/errbit,cph/errbit,openSUSE/errbit,sinrutina/errbit,notch8/errbit,ndlib/errbit,concordia-publishing-house/errbit,alphagov/errbit,assetricity/errbit,errbit/errbit,Talentee/errbit,14113/errbit-1,lucianosousa/errbit,dwilkie/errbit,concordia-publishing-house/errbit,startdatelabs/errbit,joshuaswilcox/Errbitstrap,jaronkk/errbit,arrowcircle/errbit,vinco/errbit,rightscale/errbit_old,ninech/errbit,jjosten/errbit,projectdx/errbit,openSUSE/errbit,dwilkie/errbit,cognoa/errbit,deskrock/errbit,subvisual/errbit,burningpony/errbit,pallan/errbit,accessd/errbit,3zcurdia/errbit,rud/errbit,wombatsecurity/errbit,stevecrozz/errbit,bonanza-market/errbit,wombatsecurity/errbit,notch8/errbit,projectdx/errbit,disvelop/errbit,denyago/errbit,Cloud-Temple/errbit,Stackato-Apps/errbit,otzy007/errbit,chautoni/mingle-errbit,denyago/errbit,denyago/errbit,felixbuenemann/errbit,appdate/errbit,errbit/errbit,startdatelabs/errbit,Gratzi/pegg-errors,Talentee/errbit,fireho/errbit,griff/errbit,burningpony/errbit,Gratzi/pegg-errors,ndlib/errbit,micred/errbit,Talentee/errbit,appdate/errbit,concordia-publishing-house/errbit,PeggApp/pegg-errors,rightscale/errbit_old,stevecrozz/errbit,deskrock/errbit,threatsim/errbit,12spokes/errbit,felixbuenemann/errbit,Gratzi/pegg-errors,threatsim/errbit,iFixit/errbit,micred/errbit,bonanza-market/errbit,lucianosousa/errbit,subvisual/errbit,mak-it/errbit,lucianosousa/errbit,Talentee/errbit,CarlosCD/errbit,pandora2000/errbit,jaronkk/errbit,pallan/errbit,iFixit/errbit,fxposter/errbit,openSUSE/errbit,ZeusWPI/errbit,jjosten/errbit,accessd/errbit,Undev/errbit,wombatsecurity/errbit,arrowcircle/errbit,fusco/errbit,steveyken/errbit,ZeusWPI/errbit,concordia-publishing-house/errbit,jordoh/errbit,salemove/errbit,14113/errbit-1,startdatelabs/errbit,PeggApp/pegg-errors,shyftplan/errbit,accessd/errbit,jjosten/errbit,shivanibhanwal/errbit,KomalDhanwani/errorinspector,salemove/errbit,linki/errbit