WL-2355 Add license-maven-plugin for adding ECL.

This hasn't yet been run over the files and needs some tweaking, but it should work now.
Add exclusion for the license plugin from m2e.

This stops warning from Eclipse.
Added description to explain why module exists.
Make sure we don't break the MySQL SQL.
Ignore the minify plugin
Exclude JS libs
WL-2355 Add the license to all our files.
Make sure we don't depend on platform encoding.
Add license to toplevel project
Merge pull request #69 from ox-it/WL-2355

WL-2355 Use license-maven-plugin to update all the licenses.