Create Release Script

Resolves #53 

![screen shot 2013-08-29 at 11 38 51 am](https://f.cloud.github.com/assets/359239/1046834/dbbc1d00-104b-11e3-9d9d-1a4bc6456e6d.png)

Done:

 - initialization now occurs when you install Shimmer, no manual steps needed
 - renamed `Publish-ShimmerRelease` to `New-Release`
 - tab-completion for places where you need a project name
 - calling `Create-Release.ps1` to create the necessary package and installer
 - when you don't specify a project, use the current one
 - dropped RxUI core dependency for Shimmer (as per https://github.com/github/Shimmer/commit/fbbd3e6cbd6e60267fb9a98b4a0d08f21fe0781c#commitcomment-3959607)

TODO:

 - [x] merge the `Create-Release.ps1` script into mine
 - [x] update docs for changes to Powershell methods
 - [x] auto-reload the csproj file, don't harass the user
 - [x] update documentation
 - [x] better diagnostics based on edge cases (have you build the solution? etc)

(oh man i think i broke github-flavoured markdown - use your imagination on this one)

Open Questions:

~~Can you think of better names for the two methods above while using the approved `Get-Verb` syntax for Powershell methods - and indicating these are Shimmer-specific methods?~~ :boom: :metal: sorted