Raise Octave errors instead of exceptions for conversion errors * Makefile.am (COMMON_SOURCE_FILES): Include oct-py-error.cc in the list. (PYTAVE_HEADER_FILES): Include oct-py-error.h in the list. * oct-py-error.cc, oct-py-error.h: New files defining error conditions. * oct-py-types.cc (pytave::extract_py_bool, pytave::extract_py_complex, pytave::extract_py_float, pytave::make_py_array, pytave::extract_py_scalar_map, pytave::extract_py_int64, pytave::extract_py_uint64, pytave::extract_py_str): Use new error condition functions instead of throwing exceptions. (pytave::make_py_array, pytave::make_py_numeric_value, pytave::make_py_tuple): Raise Octave error instead of throwing exceptions. * __py_struct_from_dict__.cc (F__py_int64_scalar_value__, F__py_uint64_scalar_value__): Remove exception handling logic. * pycall.cc (Fpycall): Remove conversion exception handlers. * pyeval.cc (Fpyeval): Likewise. * pyexec.cc (Fpyexec): Likewise. * exceptions.h (pytave::pytave_exception, pytave::octave_error_exception, pytave::octave_parse_exception, pytave::value_convert_exception, pytave::object_convert_exception, pytave::variable_name_exception): Delete no longer used exception types.

syntax: regexp
# The recurrent (^|/) idiom in the regexps below should be understood
# to mean "at any directory" while the ^ idiom means "from the
# project's top-level directory".

# These directories and files are created by GNU autotools
^Makefile\.in$
^aclocal\.m4$
^autom4te\.cache($|/)
^build-aux($|/)
^config\.h\.in$
^configure$

# This directory contains m4 files managed by GNU libtool, but also contains
# some files maintained in the repository
^m4/(libtool|lt.+)\.m4$

# These files are created by running configure
(^|/)Makefile$
(^|/)config\.h$
(^|/)config\.log$
(^|/)config\.status$
(^|/)libtool$
(^|/)stamp-h1$

# These files are normal build system artifacts
(^|/).+\.cc-tst$
(^|/).+\.l?[ao]$
(^|/).+\.oct$
(^|/).+\.tar\.gz$
(^|/)PKG_(ADD|DEL)$
(^|/)\.deps($|/)
(^|/)\.libs($|/)
(^|/)fntests\.log$
(^|/)octave-workspace$

# This directory contains Doxygen generated documentation
^doc($|/)