Upgrade to haystack >=1.1.0
Upgrade to haystack >=1.1.0

This fixes an incompatibility with Xapian, as documented here:
https://groups.google.com/group/django-users/browse_thread/thread/048f230f8e5e9a69/304765152e7c55de?lnk=raot

vipul-sharma20/oh-mainline,heeraj123/oh-mainline,jledbetter/openhatch,vipul-sharma20/oh-mainline,waseem18/oh-mainline,nirmeshk/oh-mainline,moijes12/oh-mainline,nirmeshk/oh-mainline,eeshangarg/oh-mainline,willingc/oh-mainline,Changaco/oh-mainline,waseem18/oh-mainline,jledbetter/openhatch,willingc/oh-mainline,willingc/oh-mainline,ehashman/oh-mainline,moijes12/oh-mainline,mzdaniel/oh-mainline,SnappleCap/oh-mainline,moijes12/oh-mainline,ehashman/oh-mainline,willingc/oh-mainline,sudheesh001/oh-mainline,willingc/oh-mainline,heeraj123/oh-mainline,SnappleCap/oh-mainline,nirmeshk/oh-mainline,vipul-sharma20/oh-mainline,heeraj123/oh-mainline,Changaco/oh-mainline,SnappleCap/oh-mainline,campbe13/openhatch,vipul-sharma20/oh-mainline,eeshangarg/oh-mainline,nirmeshk/oh-mainline,eeshangarg/oh-mainline,waseem18/oh-mainline,heeraj123/oh-mainline,heeraj123/oh-mainline,vipul-sharma20/oh-mainline,onceuponatimeforever/oh-mainline,campbe13/openhatch,SnappleCap/oh-mainline,mzdaniel/oh-mainline,waseem18/oh-mainline,campbe13/openhatch,ojengwa/oh-mainline,sudheesh001/oh-mainline,onceuponatimeforever/oh-mainline,eeshangarg/oh-mainline,ojengwa/oh-mainline,openhatch/oh-mainline,ehashman/oh-mainline,jledbetter/openhatch,openhatch/oh-mainline,waseem18/oh-mainline,Changaco/oh-mainline,mzdaniel/oh-mainline,mzdaniel/oh-mainline,eeshangarg/oh-mainline,openhatch/oh-mainline,ojengwa/oh-mainline,mzdaniel/oh-mainline,onceuponatimeforever/oh-mainline,sudheesh001/oh-mainline,onceuponatimeforever/oh-mainline,Changaco/oh-mainline,ehashman/oh-mainline,moijes12/oh-mainline,onceuponatimeforever/oh-mainline,ojengwa/oh-mainline,campbe13/openhatch,mzdaniel/oh-mainline,openhatch/oh-mainline,ojengwa/oh-mainline,nirmeshk/oh-mainline,Changaco/oh-mainline,sudheesh001/oh-mainline,SnappleCap/oh-mainline,openhatch/oh-mainline,ehashman/oh-mainline,jledbetter/openhatch,sudheesh001/oh-mainline,moijes12/oh-mainline,mzdaniel/oh-mainline,campbe13/openhatch,jledbetter/openhatch