Updating Ghost-Admin: final 0.9.0 testing
Updating Ghost-Admin: final 0.9.0 testing

includes:
- dependency updates
- alt tag support in image uploader
- session loss fix for intermittent connections
- various bug fixes

NovaDevelopGroup/Academy,Kikobeats/Ghost,mohanambati/Ghost,ballPointPenguin/Ghost,rizkyario/Ghost,ngosinafrica/SiteForNGOs,TryGhost/Ghost,sebgie/Ghost,olsio/Ghost,dbalders/Ghost,novaugust/Ghost,cwonrails/Ghost,singular78/Ghost,leninhasda/Ghost,mohanambati/Ghost,letsjustfixit/Ghost,disordinary/Ghost,leninhasda/Ghost,ManRueda/manrueda-blog,klinker-apps/ghost,kevinansfield/Ghost,SkynetInc/steam,BlueHatbRit/Ghost,MadeOnMars/Ghost,dbalders/Ghost,SkynetInc/steam,e10/Ghost,ignasbernotas/nullifer,vainglori0us/urban-fortnight,ManRueda/manrueda-blog,Gargol/Ghost,stridespace/Ghost,javorszky/Ghost,pollbox/ghostblog,letsjustfixit/Ghost,Kikobeats/Ghost,stridespace/Ghost,e10/Ghost,ngosinafrica/SiteForNGOs,adam-paterson/blog,JohnONolan/Ghost,MadeOnMars/Ghost,chevex/undoctrinate,kevinansfield/Ghost,sebgie/Ghost,TryGhost/Ghost,ErisDS/Ghost,pollbox/ghostblog,NovaDevelopGroup/Academy,kevinansfield/Ghost,daimaqiao/Ghost-Bridge,dbalders/Ghost,cwonrails/Ghost,lf2941270/Ghost,acburdine/Ghost,singular78/Ghost,klinker-apps/ghost,olsio/Ghost,ivantedja/ghost,bitjson/Ghost,acburdine/Ghost,vainglori0us/urban-fortnight,jorgegilmoreira/ghost,sebgie/Ghost,jorgegilmoreira/ghost,JohnONolan/Ghost,JohnONolan/Ghost,javorszky/Ghost,rizkyario/Ghost,jomahoney/Ghost,janvt/Ghost,cwonrails/Ghost,jomahoney/Ghost,lukekhamilton/Ghost,BlueHatbRit/Ghost,singular78/Ghost,lf2941270/Ghost,acburdine/Ghost,obsoleted/Ghost,stridespace/Ghost,novaugust/Ghost,ErisDS/Ghost,disordinary/Ghost,letsjustfixit/Ghost,obsoleted/Ghost,daimaqiao/Ghost-Bridge,bitjson/Ghost,Gargol/Ghost,NovaDevelopGroup/Academy,daimaqiao/Ghost-Bridge,novaugust/Ghost,tidyui/Ghost,mohanambati/Ghost,vainglori0us/urban-fortnight,ballPointPenguin/Ghost,jorgegilmoreira/ghost,janvt/Ghost,rizkyario/Ghost,lukekhamilton/Ghost,adam-paterson/blog,tidyui/Ghost,ErisDS/Ghost,Kikobeats/Ghost,TryGhost/Ghost,ManRueda/manrueda-blog,ignasbernotas/nullifer