Adding requirement that method not be nil in requestWithMethod:path:parameters

Defaulting path to blank string if nil
Changing multipartFormRequestWithMethod:... to black-list GET and HEAD rather than whitelist particular methods.

Enforcing non-nil, non-GET / HEAD method parameter requirement
[Issue #465] Enforcing non-nil path constraint, and making it so that path is relative to the path of the client baseURL

[Issue #465] Providing additional explanation about how to manage the lifecycle of enqueued operations
Merge branch 'master' of github.com:AFNetworking/AFNetworking
[Issue #465] Instead of enforcing non-nil parameter, allow it to signify not appending a path to the base URL when matching
[Issue #569] Adding missing ownership field in JSON properties
Replacing existing property ownership values of retain with strong
Using NS_ENUM in place of typedef enum
Revert "Using NS_ENUM in place of typedef enum"

This reverts commit ae1d419cd403d6d888d939dde1057b56981a1f40.
Twitter shut off its unauthorized access to the public timeline; switching example over to the App.net global stream.
NSCParameterAssert -> NSParameterAssert
Minor reorganization & cleanup
Using consistent urlRequest parameter name in AFHTTPClient
Minor updates to AFURLConnectionOperation documentation
Updating changelog to 1.0
Updating README
Updating podspec to 1.0
avoid warning (error with -Werror) on implicit 64 to 32 conversion
Merge pull request #578 from Madefire/64_to_32_conversion

Avoid warning on implicit 64 to 32 conversion in AFHTTPClient.m
[Issue #579] Fixing last file component in multipart form part creation