ctype: fix isspace to test all space class characters
As per SUSv2, isspace
should check more than just the space character:
http://pubs.opengroup.org/onlinepubs/7908799/xsh/isspace.html
The isspace() function tests whether c is a character of class space in the program's current locale, see the XBD specification, Locale.
http://pubs.opengroup.org/onlinepubs/7908799/xbd/locale.html
space: Define characters to be classified as white-space characters. In the POSIX locale, at a minimum, the characters space, form-feed, newline, carriage-return, tab and vertical-tab are included. ...
This MR fixes the themes and localizations in ScummVM: cookbook!187 (merged)