New options for block decomposition and bytecode (see http://www.dynare.org/DynareWiki/ByteCode):

- the options "sparse_dll" and "sparse" are no more available. They are replaced by combinations of block (for block decomposition) and bytecode (for model stored in a binary file)
- markowitz is now an option of simul and steady commands


git-svn-id: https://www.dynare.org/svn/dynare/trunk@2873 ac1d8469-bf42-47a9-8791-bf33cf982152