Fix annoying error message, when dirs exist
Extend examples list
Merge changes from 'develop' branch
codegenerators:matlab: refactoring of 'generate_spec' method
codegenerators:base: fix error message
codegenerators:matlab: add 'define' option for define string format
codegenerators:matlab: change 'defineMany' signature, extract adding header
codegenerators: pull 'define'/'defineMany' methods to base class
codegenerators: pull '_normalize_spec' method to base class
codegenerators:matlab: inline method
test_matlab: mark bug
test_matlab: add failing test for 'generate_aux'
codegenerators:matlab: unifying code generation, fix found bugs as a result
test_matlab: extract tests for base class
codegenerators:matlab: continue unification
codegenerators:matlab: extract callable for spec adjusting
codegenerators:matlab: massive code reorganization
codegenerators:matlab: fix bug with name mangling in reuseterms
codegenerators:matlab: extract common code, preserve spaces in auxfun result value string