- fix for unescaped brackets in params values
Merge branch 'bracket-pull-request' of github.com:opentable/AFNetworking into opentable-bracket-pull-request

Conflicts:
	AFNetworking/AFHTTPClient.m
Fixing merge in 52ad3f838022b2bc0d5e7f897e695dc8bc0fc227
[Issue #887] [Issue #1096] Removing implementation of connection:needNewBodyStream:
[Issue #1288] Improving implementation of connection:didRecieveData: to handle case where stream -hasSpaceAvailable returns NO by polling. For in-memory buffers, this will almost never happen.

[Issue #1093] Handling stream errors in connection:didRecieveData:
[Issue #1093] Handling stream errors for AFMultipartBodyStream
[Issue #1288] Adding loop around write to ensure entire length of data is written
[Issue #1206] Fixing checks for network reachability flags over WWAN
Bumping version to 1.3.3
Merge branch 2.0 into master
Quick update to README
Ensuring that start and stop animating for UIActivityIndicatorView category are called on main
Ensuring that progress is set in UIProgressView category only on main
[Issue #1336] Updating response serializer validation error message to be more appropriate in user-facing situations
Adding documentation for AFSecurityPolicy
Updating documentation for default session manager response serializers
Adding upload/download progress animated associated objects

Using af_ prefix on associated object properties
Adding __unused declarations to fix warnings
dispatch_sync -> dispatch_async
Enabling and fixing extensive compiler warnings