Update network activity indicator only if requests have a non nil URL
Add asterisk (*) as a percent escaped character since it's in the reserved words per the RFC
Merge pull request #843 from blakewatters/bugfix/avoid-logging-crashes-from-notifications

Rework Notification Delivery to Avoid Crashes in Logging
Merge pull request #842 from 0xced/no-nil-network-activity

Update network activity indicator only if requests have a non nil URL
Merge pull request #841 from 0xced/indentation-settings

Set indentation settings to four spaces at the project level
The documentations states registered operation classes are consulted to the reverse order in which they are registered. New registrations are added to the beginning of the array in the register implementation. Fixed using the reverseObjectEnumerator when iterating the array which produced the opposite of documented behaviour. fixes #794
changed op_class variable to more objective-c style variable name operationClass
Merge pull request #849 from joelparsons/master

AFHTTPClient Registered operation classes consulted in wrong order.
Merge pull request #806 from drodriguez/gh-800-multipart-custom-filename

Add parts with custom file names and MIME types
Minor formatting fix
Minor formatting fixes
Merge pull request #844 from karbonworks/master

Add asterisk (*) as a percent escaped character...
UIImageView+AFNetworking not using setHTTPShouldHandleCookies

Signed-off-by: Mattt Thompson <m@mattt.me>
Add ability to appendPartWithInputStream to AFMultipartFormData.
Adds `AFSSLPinningModeNone`.
Minor formatting and documentation edits
Merge branch 'experimental-ssl-pinning'
Merge branch '781-mime-stream-pair' of git://github.com/plausiblelabs/AFNetworking
Minor refactoring / reformatting after merge
Re-implementing throttling in stream provider architecture