@GerHobbelt and @janvda added options.getRootDir() feature, which allows to specify a root directory on the fly, e.g. the directory of the MD file currently being processed see issue #9
@GerHobbelt added bracesAreOptional option. Now you can write !!!include xyz.md !!! without the parenthesis.
@OPscT Trim the included markdown to avoid line feed (\n)