Release 0.2.8

This release brings a handful of fixes:

• Fixed multiline (line continuation) state termination (by an empty line)
• Fixed empty continuation line parsing (e.g. just '')
• Fix to the parser to process empty text on input (and produce empty AST)
• Fix to allow quoted and bare paths in the Include statement
• The apacheconfigtool to respect --namedblocks option when running in --json-input mode