Use "long long" instead of "NSInteger" on byte count.

Byte count should always be 64bit integer. Otherwise, AFNetworking won't work on streams
larger than 4GB in 32bits mode. This commit revert the PR #1772 and e94a52c.
Update license year

Fix outdated copyright year (updated to 2014).
The copyright year was out of date. Copyright notices must reflect the current year, so this commit updates the listed year to 2014.

See http://www.copyright.gov/circs/circ01.pdf for more info.
care for 'Content-Length'  on taskDidSendBodyData block
Fixing not calling taskDidComplete if there's no task delegate.
Re-establish AFNetworkingURLSessionTaskDelegates after restoring from a specific configuration.  Create accessors for getting download an upload progress objects from tasks.
align the upload task code example in README

I just keep seeing this README, so I should make sure it's perfect.
Merge pull request #1991 from orta/patch-1

align the upload task code example in README
Removed use of NSCParameterAssert on non-parameters
Merge pull request #1989 from fuzzybinary/taskreconnectfix

Reconnect NSURLSessionTasks to AFNetworking delegates when resuming a session
Merge branch 'master' of github.com:AFNetworking/AFNetworking
Formatting and copy editing progress methods
Refactoring implementation of associating session tasks with delegates
Removing blocking dispatch semaphore for reassociating any tasks with delegates
[Issue #1977] nil-ing out outputStream property after closing

Signed-off-by: Mattt Thompson <m@mattt.me>
[Issue #1977] nil-ing out request image view operation after completion

Signed-off-by: Mattt Thompson <m@mattt.me>
[Issue #1916] Refactoring AFErrorOrUnderlyingErrorHasCode to AFErrorOrUnderlyingErrorHasCodeInDomain

Making AFErrorOrUnderlyingErrorHasCodeInDomain and AFErrorWithUnderlyingError non-static
[Issue #1916] Partial revert of 15515ef, making private functions static again
Merge pull request #1911 from cvasilak/progress

care for 'Content-Length'  on taskDidSendBodyData block
Merge pull request #1892 from yllan/reverse64bit

Use "long long" instead of "NSInteger" on byte count.
Adding changes from 1.3.4