[SessionAuth] Refs #106, make the URLs and parameters used by SessionAuth configurable.
Remove leading / in redirect creation
+ added possibility to specify an interface for the binding to be mapped to
+ merge with master and cleanup
. better handling of optional interface pointer argument
Formatting
Merge pull request #123 from rakyll/cors

[cors] Add support for Access-Control-Expose-Headers
[strip] Fix url
Merge pull request #114 from rday/ConfigOptions

[SessionAuth] Configuration Options
Update sessionauth example with configurable options
Merge pull request #127 from rday/FixExample

Update sessionauth example with configurable options
Merge pull request #124 from superlogical/patch-1

[strip] Fix url from Archs to codegansta
[oauth2] Initial commit.
[oauth2] Exchanging with an OAuth2 backend to retrieve tokens, and storing retrieved credentials in the session.
[oauth2] Login, logout and callback handler paths should be configurable.
[oauth2] Adding Github endpoints.
[oauth2] Redirect user to an error page, if OAuth2 exchange fails.
[oauth2] Add docs.
[oauth2] Remove debug print.
[oauth2] Redirect code shouldn't be hard-coded.