Simplify InternalRegexOptions using Enum.TryParse
Remove the net40-client build (no advantage over the portable-net40 build) (closes #49)
Updated signing policy (fixes #55)
Merge pull request #56 from sharwell/unify-build

Unify build
Add missing <para> tags to documentation comments
Clean up documentation project files
Migrate to NuGet Automatic Package Restore
Only build IntelliSense information for the net35-client documentation project
Merge pull request #57 from sharwell/doc-build

Documentation build improvements
Shorter paths within the NuGet package ('win' instead of 'netcore45')
Support .NET 2.0
Merge pull request #48 from sharwell/net20

Support .NET 2.0