- Remove python code from octave's std_basic_string.i
- Correctly return an error to fix error handling when using std::basic_string in
overloaded methods - issue #1171.
Lib/std/std_basic_string.i:235: Warning 365: operator+= ignored
Lib/std/std_wstring.i:8: Warning 378: operator!= ignored
Correct 801 warning suppressions (which are normally suppressed in the test-suite):
Lib/std/std_wstring.i:13: Warning 801: Wrong class name (corrected to `Wstring')
Similarly for std::string when including basic_string.i class.
