Improved account deletion

- Removed old "WordPress.com" credential deletion. We've had accounts
  for a while
- Don't cancel/reset the API object if it's not initialized
Moved wp.com cookie deletion to AccountService

WordPressComApi should be only about REST.
AccountService should be handling self-hosted account removal and
clearing cookies for those as well, but that's another issue
Updated LocationServiceTimeoutDuration to 5 sec
Merge pull request #1860 from wordpress-mobile/issue/1859-tweak-location-services-timeout

Updated LocationServiceTimeoutDuration to 5 sec
Merge pull request #1858 from wordpress-mobile/issue/1842-keychain-sign-out

#1842 keychain sign out issues
Updates Podfile dependencies
updates Helpshift pod to 4.5.0
Updates Pods
Removes Pods from User Header Search Paths
Fixes code referencing to AFNetworkingErrorDomain

AFNetworking’s AFNetworkingErrorDomain constant has been split into two
new strings:

- AFURLRequestSerializationErrorDomain
- AFURLResponseSerializationErrorDomain
Fixes EditPostViewController

WPEditorViewControllerDelegate’s editPostViewDismissed has been deleted.

This commit updates EditPostViewController, so it doesn’t rely on that
delegate just to signal compeltion.
Reverts Podfile change
Merge pull request #1864 from wordpress-mobile/issue/1845-update_Helpshift_framework

issue #1845 - update Helpshift framework
Merge remote-tracking branch 'origin/develop' into issue/1861-upgrades-afnetworking

Conflicts:
	Pods/Pods.xcodeproj/project.pbxproj
Merge pull request #1865 from wordpress-mobile/issue/1861-upgrades-afnetworking

Issue/1861 Upgrades AFNetworking
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	Podfile.lock
	Pods/AFNetworking/AFNetworking.podspec
	Pods/AFNetworking/CHANGES
	Pods/AFNetworking/CONTRIBUTING.md
	Pods/AFNetworking/Example/AFNetworking iOS Example.xcodeproj/project.pbxproj
	Pods/AFNetworking/Example/Classes/AFAppDotNetAPIClient.m
	Pods/AFNetworking/Example/Classes/Models/User.h
	Pods/AFNetworking/Example/Classes/Models/User.m
	Pods/AFNetworking/Tests/AFNetworking Tests.xcodeproj/project.pbxproj
	Pods/AFNetworking/Tests/Resources/ADN.net/ADNNetServerTrustChain/adn_0.cer
	Pods/AFNetworking/Tests/Tests/AFHTTPRequestOperationTests.m
	Pods/AFNetworking/Tests/Tests/AFHTTPSerializationTests.m
	Pods/AFNetworking/Tests/Tests/AFJSONSerializationTests.m
	Pods/AFNetworking/Tests/Tests/AFPropertyListResponseSerializerTests.m
	Pods/Helpshift/file.zip
	Pods/Local Podspecs/WordPressApi.podspec
	Pods/MGImageUtilities/MGImageUtilities.podspec
	Pods/MGImageUtilities/MGImageUtilities.xcodeproj/project.pbxproj
	Pods/Manifest.lock
	Pods/OCMock/Source/Changes.txt
	Pods/OCMock/Source/License.txt
	Pods/OCMock/Source/OCMock.xcodeproj/project.pbxproj
	Pods/OCMock/Source/OCMock.xcodeproj/xcshareddata/xcschemes/OCMock.xcscheme
	Pods/OCMock/Source/OCMock.xcodeproj/xcshareddata/xcschemes/OCMockLib.xcscheme
	Pods/OCMock/Source/OCMockTests/NSInvocationOCMAdditionsTests.m
	Pods/OCMock/Source/OCMockTests/NSMethodSignatureOCMAdditionsTests.m
	Pods/OCMock/Source/OCMockTests/OCMArgTests.m
	Pods/OCMock/Source/OCMockTests/OCMConstraintTests.m
	Pods/OCMock/Source/OCMockTests/OCMockObjectClassMethodMockingTests.m
	Pods/OCMock/Source/OCMockTests/OCMockObjectForwardingTargetTests.m
	Pods/OCMock/Source/OCMockTests/OCMockObjectHamcrestTests.mm
	Pods/OCMock/Source/OCMockTests/OCMockObjectPartialMocksTests.m
	Pods/OCMock/Source/OCMockTests/OCMockObjectProtocolMocksTests.m
	Pods/OCMock/Source/OCMockTests/OCMockObjectTests.m
	Pods/OCMock/Source/OCMockTests/OCMockRecorderTests.m
	Pods/OCMock/Source/OCMockTests/OCObserverMockObjectTests.m
	Pods/OCMock/Tools/build.rb
	Pods/Pods-Acknowledgements.markdown
	Pods/Pods-Acknowledgements.plist
	Pods/Pods-CTidy-prefix.pch
	Pods/Pods-Google-Diff-Match-Patch-prefix.pch
	Pods/Pods-JRSwizzle-prefix.pch
	Pods/Pods-JSONKit-prefix.pch
	Pods/Pods-Quantcast-Measure-prefix.pch
	Pods/Pods-SFHFKeychainUtils-prefix.pch
	Pods/Pods-Simperium-prefix.pch
	Pods/Pods-SocketRocket-prefix.pch
	Pods/Pods-WordPressTest-OCMock-Private.xcconfig
	Pods/Pods-WordPressTest.xcconfig
	Pods/Pods.xcconfig
	Pods/Pods.xcodeproj/project.pbxproj
	Pods/WordPress-iOS-Editor/Example/Pods/Pods-EditorDemo-AFNetworking-prefix.pch
	Pods/WordPress-iOS-Editor/Example/Pods/Pods-EditorDemo-CocoaLumberjack-prefix.pch
	Pods/WordPress-iOS-Editor/Example/Pods/Pods-EditorDemo-DTFoundation-prefix.pch
	Pods/WordPress-iOS-Editor/Example/Pods/Pods-EditorDemo-UIAlertView+Blocks-prefix.pch
	Pods/WordPress-iOS-Shared/Podfile
	Pods/WordPress-iOS-Shared/WordPress-iOS-Shared.podspec
	Pods/WordPressApi/WordPressApi.podspec
	Pods/WordPressCom-Stats-iOS/Podfile
	Pods/WordPressCom-Stats-iOS/Podfile.lock
	Pods/WordPressCom-Stats-iOS/WordPressCom-Stats-iOS.podspec
	Pods/WordPressCom-Stats-iOS/WordPressCom-Stats-iOS.xcworkspace/contents.xcworkspacedata
	WordPress/WordPress.xcodeproj/project.pbxproj