Merge pull request #941 from grumpydev/ViewCacheChanges

Caching Changes
Removed old razor binary
Initial hackery - very broken :-)

VB compilation disabled completely, C# works, but currently no
attributes are outputted so the resulting HTML is kinda broken :P

Also disabled finding the model type and auto loading the assembly
because it will need rewriting.
Bodged the attribute renderer

Pages now render (for the most part), but blow up if you do
something like <img src='~/blah.png'/>
Added more logic to attribute rendering for null and false
Fixed ~ expansion

It's another "string mapping to a method" thing, but rather than add it
to the constructor of GeneratedClassContext, like the other gazillion
properties have been, you have to set the property manually. Genius stuff.

Lot of stuff to put back, and want to review how we do master pages, but
seems to be working ok.
Updated to take dependency on unofficial nuget
Updated WriteAttribute and nuget reference