Added a License (BSD)

I suggest BSD (specifically the Revised BSD license, AKA BSD 3 Clause:
http://opensource.org/licenses/BSD-3-Clause
While it allows free usage by anyone, it prevents derivative works from claiming endorsement from RDI without express consent, while also remaining simple.

For example, they can't copy it, do malicious things with it, and drag RDI's name through the mud for it. See:
http://programmers.stackexchange.com/questions/82321/why-do-people-pick-the-mit-license-over-bsd-if-bsds-non-endorsement-clause-i
Update license to MIT per Jim
Fill in license placeholders
Merge pull request #59 from ResourceDataInc/License

Added a License (BSD)