Add LGPL 2.1 headers to files without license info
Version 2.0 > 1.1

Without this the version number test thinks 2.0 < 1.1 and refuses raw mode with:
"raw_api requires API version 1.1 or higher".
Merge pull request #6 from k-stailey/fix-version-number-test

Version 2.0 > 1.1
Merge remote-tracking branch 'rharrison/license'