Issue: Timeout when buffer ends during ending boundry
Fixed retain cycles in AFImageRequestOperation.m and AFHTTPClient.m caused by strong references within blocks

These retain cycles started showing up as compiler warnings after upgrading to Xcode 4.6DP
Fixing warnings: implicit conversion changes signedness: 'NSInteger' (aka 'long') to 'unsigned long' [-Werror,-Wsign-conversion]
Fixes warning: unused parameter 'x' [-Werror,-Wunused-parameter]
Fixes warning: property is assumed atomic by default [-Werror,-Wimplicit-atomic-properties]
Fixes warning: weak receiver may be unpredictably null in ARC mode [-Werror,-Wreceiver-is-weak]
Fixes warning: multiple methods named 'selector' found [-Werror,-Wstrict-selector-match]
Fixing tabs/spaces whitespace inconsistency.
Fixes warning: 'macro' is not defined, evaluates to 0
Fixes warning: atomic by default property 'X' has a user defined getter (property should be marked 'atomic' if this is intended) [-Werror,-Wcustom-atomic-properties]
Fixes warning: 'response' was marked unused but was used [-Werror,-Wused-but-marked-unused]
Fixes warning: 'X' is not defined, evaluates to 0 [-Werror,-Wundef]
Fixes warning: atomic by default property 'X' has a user defined getter (property should be marked 'atomic' if this is intended) [-Werror,-Wcustom-atomic-properties]
Fixes warning: enumeration value 'AFFinalBoundaryPhase' not explicitly handled in switch [-Werror,-Wswitch-enum]
Adding top-level group for source files
Adding responseStringEncoding property to AFURLConnectionOperation
[Issue #660] Add workaround for NSJSONSerialization crash with Unicode character escapes in JSON response

Signed-off-by: Mattt Thompson <m@mattt.me>
[Issue #652] Adding early return in -startMonitoringNetworkReachability if network reachability object could not be created (i.e. invalid hostnames)

Signed-off-by: Mattt Thompson <m@mattt.me>
[Issue #651] Adding workaround for Rails behavior of returning a single space in head :ok responses, which is interpreted as invalid input by NSJSONSerialization

Signed-off-by: Mattt Thompson <m@mattt.me>
Merge branch 'fixes-for-strict-warnings' of https://github.com/ittybittyapps/AFNetworking into ittybittyapps-fixes-for-strict-warnings

Conflicts:
	AFNetworking/AFHTTPClient.m
	AFNetworking/AFHTTPRequestOperation.m
	AFNetworking/AFImageRequestOperation.h
	AFNetworking/AFNetworking.h
	AFNetworking/AFURLConnectionOperation.m