Changed namespace from FSpec.Core to FSpec

Adding .Core to the namespace was unnecessary
Renamed FSpec.Core.dll to FSpec.dll
Moved MatchersV3 to Matchers namespace
Created FSpec.AutoFoq project
Added AutoFoq nuget spec
Updated fake build script
Added AutoFoq to rakefile
Build scripts for creating test packages
Fixed nuspec package
Capitalized nuget package names
Added missing <<- operator in compatibility file
v-0.1.0