Update license information.

- Remove GPL code from the library.
- Annotate all remaining files with a proper license header as per the
  LICENSE file.
Rewrite build system and change project branding.
Replace (block) storage management.
Add minimal timer API.
Complete dispatcher API.
Refactor view API.
Update DDA API to be standard-compliant.
Refactor reduction API.
Refactor signal API.
Refactor matvec API.
Add LAPACK backend and refactor solver API.
Refactor parallel API.
Add CVSIP backend.
Adjust tests and benchmarks to API changes.
Improve multi-threading support.
Add FFTW backend.
Add example files.

Add example files from Sourcery VSIPL++ 3.3-12, as provided by
J. Kepner.  These files are licensed under a BSD license; the
license headers are exactly as in the files delivered by Mentor
Graphics and have not been altered.
Add SSAR application.

Add SSAR application files from Sourcery VSIPL++ 3.3-12, as provided by J. Kepner.  These files are
licensed under a BSD license; the license headers are exactly as in the files delivered by Mentor Graphics
and have not been altered.

Note that this does not include the SSAR data files for size reasons.  The README file contains pointers to
the origins of this benchmark, and the reference Matlab implementation files (which can be tracked down
from those pointers) contain scripts to regenerate the input data.
Adjust examples to refactored API.
Add packaging logic.