Merge pull request #20 from JuliaLang/graphemes

Update graphemes for Unicode 7

diff --cc mojibake.h
index fa93c8d539014d22a0717439a5e8913d62aa3d11,d65d0c51c9ba21aadd0287229cb88240c3b82955..ce97d3601a5fd1d98228d2ef730e4b6a27af6225
--- 1/mojibake.h
--- 2/mojibake.h
+++ b/mojibake.h
@@@ -179,11 -180,9 +180,10 @@@ typedef struct utf8proc_property_struc
    unsigned comp_exclusion:1;
    unsigned ignorable:1;
    unsigned control_boundary:1;
-   unsigned extend:1;
-   const int32_t *casefold_mapping;
+   unsigned boundclass:4;
  } utf8proc_property_t;
  
 +#define UTF8PROC_CATEGORY_CN  0
  #define UTF8PROC_CATEGORY_LU  1
  #define UTF8PROC_CATEGORY_LL  2
  #define UTF8PROC_CATEGORY_LT  3