Add note regarding iOS 7 support
Add note regarding iOS 7 support

iOS 7 requires manual deployment because embedded frameworks only work on iOS 8 and up (or OSX Mavericks).
chrisamanse/SWXMLHash,jpsim/SWXMLHash,yas375/SWXMLHash,jpsim/SWXMLHash,drmohundro/SWXMLHash,st3fan/SWXMLHash,st3fan/SWXMLHash,st3fan/SWXMLHash,yas375/SWXMLHash,drmohundro/SWXMLHash,chrisamanse/SWXMLHash,yas375/SWXMLHash,jpsim/SWXMLHash,chrisamanse/SWXMLHash,st3fan/SWXMLHash