modified:   ext/ncurses/ncurses_wrap.h

Fixes the following compiler error:

ext/ncurses/ncurses_wrap.c: In function ‘rbncurshelper_nonblocking_wgetch’:
ext/ncurses/ncurses_wrap.c:807:12: error: variable ‘tz’ has initializer but incomplete type
     struct timezone tz = {0,0};

Also closes #6
Merge pull request #7 from marblenix/bugfix

Fixes the following incomplete tz initializer compiler error.