update for unicode 12 (#148)

README.md

@@ -39,7 +39,7 @@ The C library is found in this directory after successful compilation
 and is named `libutf8proc.a` (for the static library) and
 `libutf8proc.so` (for the dynamic library).
 
-The Unicode version supported is 11.0.0.
+The Unicode version supported is 12.0.0.
 
 For Unicode normalizations, the following options are used:
 

data/Makefile

@@ -20,7 +20,7 @@ utf8proc_data.c.new: data_generator.rb UnicodeData.txt GraphemeBreakProperty.txt
 	$(RUBY) data_generator.rb < UnicodeData.txt > $@
 
 # GNU Unifont version for font metric calculations:
-UNIFONT_VERSION=11.0.01
+UNIFONT_VERSION=12.0.01
 
 unifont.ttf:
 	$(CURL) $(CURLFLAGS) -o $@ $(URLCACHE)https://mirrors.kernel.org/gnu/unifont/unifont-$(UNIFONT_VERSION)/unifont-$(UNIFONT_VERSION).ttf
@@ -35,7 +35,7 @@ CharWidths.txt: charwidths.jl unifont.sfd unifont_upper.sfd EastAsianWidth.txt
 	$(JULIA) charwidths.jl > $@
 
 # Unicode data version
-UNICODE_VERSION=11.0.0
+UNICODE_VERSION=12.0.0
 
 UnicodeData.txt:
 	$(CURL) $(CURLFLAGS) -o $@ -O http://www.unicode.org/Public/$(UNICODE_VERSION)/ucd/UnicodeData.txt