Use strong pointer to connectionError to prevent crash due to error b…

…eing prematurely released.

Update readme re framework.

Merge branch 'master' of github.com:owainhunt/UAGithubEngine

Fix argument types for gist methods.

Previously incorrectly used NSInteger for gist id and NSString for gist comment id. These were backwards.

Add Classes folder and reorganise.

First stable version of the engine supporting v3 of the Github API.

Final stable version of the engine that supports v2 of the Github API.

Changed designated initialiser to include a withReachability option. …

…Each instance of the engine schedules a reachability callback to the run loop, so if the engine is used as anything more than a singleton multiple notifications are posted when reachability changes. The additional parameter gives the option of not scheduling this callback, useful for temporary engines.

NSString+UAGithubEngineUtilities now properly parses date formats ret…

…urned from Github by searchUsers:byEmail: in UAGithubEngine when not searching by email address.

Replaced use of params for authentication with basic HTTP auth using …

…HTTP headers. Using Matt Gallagher's NSData+Base64 category to generate required header content.