Fix blocks not called when same URL requested for download several times simultanously (fix #137)
Memory cache reserves 12MB free RAM to prevent watchdog from killing the app before memory warning is sent
Add a dedicated target with MKAnnotation category

This free other targets from unwanted MapKit framework requirement
Use NSCache instead of a dictionary for the memory cache.
Add a dedicated target with MKAnnotation category

This free other targets from unwanted MapKit framework requirement
Fix README type (fix #146)
Fix the no image issue when no placeholder image is used with UITableViewCell default templates
Updated gitignore to include build
Fix SDWebImageDecoder to obey the orientation tag
Merge pull request #167 from ltbl/master

Fix SDWebImageDecoder to obey the orientation tag
add further explanation for Build Settings info
Merge pull request #174 from jianlin/master

add explanation of where to find the link flag and the header search paths
add instructions on how to pop out the box for header search paths
quote the string to add

for the search paths
HeaderFile.h confusing

users may copy and paste it to source code (HeaderFile.h)
more readable
Merge pull request #175 from jianlin/master

add instructions
needed to quote the <Multiple values>
Merge pull request #176 from jianlin/master

needed to quote <Multiple values>
Add some security around wrongly typed URL argument