Implement Open Source Software Release Review Recommendations

[bwhiteman]

Implement the recommendations of the Open Source Software Release Review.

• Build is successful including automated tests. The expanded source archive is expected to build and pass tests.
• DISCLAIMER file is correct.
• Top-level LICENSE and NOTICE are correct for each distribution. See the Licensing How-To, plus various pages under Legal Affairs.
• All source files have license headers where appropriate.
• The provenance of all source files is clear (software grants). Details on ensuring that software grants and third party contributions are handled correctly can be seen in the DARPA Open Source Policy
• Release consists of source code only, no binaries. It is strongly encouraged that each release contains a source package. This package may not contain compiled components (such as "jar" files) because compiled components are not open source, even if they were built from open source.

[bwhiteman]

These are requirements that have been put on XDATA but will eventually apply to Memex. It is easier to start implementing them now. The biggest change here will be to add the license header to the top of each source file.

[bwhiteman]

License, Notice, and Disclaimer have been added. We will need to add the license clause to the top of all source files.