refs #1151 (on ModelicaStandardTables.c):
 * avoid locale dependency of string to number conversion
 * fixed missing calls to {{{_free_locale}}}/{{{freelocale}}}

git-svn-id: https://svn.modelica.org/projects/Modelica/trunk@6671 7ce873d0-865f-4ce7-a662-4bb36ea78beb