Merge pull request #3 from budbjames/master

Added unit tests to illustrate an issue as well as provide more code coverage.
additional dt tests added
Merge branch 'master' of github.com:sethjuarez/numl
moved string helpers to utils
added fluent api to the Descriptor class
updated license file
added nuspec file for automatic NuGet push from the server
corrected nuspec file for build purposes
corrected nuspec file description for build purposes
added prelease spec to nuspec file (for nuget)
added inline documentation to methods
added more documentation to classes
minor test changes
made some corrections to the DT algorithm. Closes #5
moved DescriptorProperty to its own class for documentation purposes
added serialization for DT's along with anscillary serialization of individual components
added Titanic project and unit tests
Added titanic project and unit tests