add filenameRelative to tests
add comments and change single quotes in amd formatter getModuleName
add sourceRoot to source map
add filenameRelative default and make sourceFileName and sourceMapName inherit form it
add new filenameRelative, sourceRoot and moduleRoot option documentation
add 1.12.17 changelog
add filenameRelative to bin/6to5*
update umd and amd tests with new moduleName option