Added Duplicate Link Exception
Merge pull request #102 from jculverwell/master

Added Duplicate Link Exception
Add Methods for Executing requests

Adds CreateAndExecuteRequest, which takes a URL and returns the json response.
Adds ExecuteRequest, which takes a request and returns the json response.
Both methods implement error checking.
Also adds methods that take Uris in the place of strings.
Merge pull request #103 from Erok21/patch-1

Add Methods for Executing requests
Convert to new WebAgent
Add Rate Limiting through Reddit.cs
New WebAgent Methods
Add Resumit function
Add Resumit function
Merge pull request #104 from Erok21/master

Add Resubmit Function
Add RemoveContributor function
Merge pull request #105 from Erok21/master

Add RemoveContributor function
Convert to Uri

UriBuilder provides access to the query portion, and intelligently adds the question mark.
Create UriExtensions.cs
Update UriExtensions.cs
Update Listing.cs
Update AuthProvider.cs

Changed flags to Uppercase, add .tolower on implementation. (it's ugly, but it works). Change to UriService uris.
Add Uri Methods
Add Uri Methods

Also made obsolete the older methods
Create UriService.cs