Tidy up a comment
(cherry picked from commit b60eb3b410af0d10e64b0f1dfd683b9c81cc49c4)
Clarify how to use OLA_PLUGIN_EXPERIMENTAL
(cherry picked from commit a87aaba12b299acf15fb02bdc2d0c72ba5df04bc)
Remove a duplicate license line in files
(cherry picked from commit 946607ffb3ab687ce8dfcd53a328820041ce75f7)
Standardise some JS license headers
(cherry picked from commit 6f810cfb3283b8a47594d3e119c4fd478fdb71b2)
Handle a lack of shebangs when checking Python licenses
(cherry picked from commit 175c287af5929834dc5e3489abaec81d5d731f3d)
Don't trash files while trying to fix license issues if we can't find enough breaks
(cherry picked from commit 34e1fbf566860c99bbd71d6540ba16b510ffc570)