Fix some namespace pollution in the static library.

This fixes namespace pollution, to prevent linker issues with apps and other
libraries with global symbols named eg. "kSDK".

Conflicts:
	src/FBLoginView.m
	src/FBRequestConnection.m

Conflicts:
	src/FBRequestConnection.m
Prefix defaultResultsLimit and defaultRadius.
Add a search bar
Fix method name such that the analyzer doesn't throw

Conflicts:
	src/FBRequestConnection.m
Always renew the access token as we can never know if we're old or not
Make this at least work sanely on iOS 7

Conflicts:
	src/FBViewController.m
Update project files

Conflicts:
	src/facebook-ios-sdk.xcodeproj/project.pbxproj
Let's not do this. We renew anyway and that will, in general, fix the fact that there was no error but also no token.
A cancel can also happen if the URL is fbconnect://success and there is an error_code of 4201.
Retry if it failed, falling back to the FB app or Safari