Fix uni042b glyph in Roman weights.

This solves issue google/fonts#7.

There is a newer release of Playfair but the GF version and upstream version have different proportions. @davelab6 suggested a quick hotfix since this issue is urgent.;

build.sh

@@ -0,0 +1,16 @@
+# Fix glyph uni042b. The components need swapping
+python fix_uni042b.py
+
+# Update font version number
+FONTS=$(ls *.ttf)
+fontbakery update-version $FONTS 1.002 1.003
+
+
+
+rm $FONTS
+FONTS_VERSION_BUMPED=$(ls *.fix)
+# replace .fix with .ttf
+for font in $FONTS_VERSION_BUMPED
+do
+    mv $font "${font%.*}"
+done

fix_uni042b.py

@@ -0,0 +1,36 @@
+"""
+Fixes issue: https://github.com/google/fonts/issues/7
+"""
+
+import os
+from fontTools.ttLib import TTFont
+
+
+BAD_GLYPH = 'uni042B'
+
+NEW_COORDS = {
+    'PlayfairDisplay-Black.ttf': {'uni042C': 0, 'I': 1393},
+    'PlayfairDisplay-Bold.ttf': {'uni042C': 0, 'I': 1311},
+    'PlayfairDisplay-Regular.ttf': {'uni042C': 0, 'I': 1188},
+
+}
+
+def main():
+    fonts_paths = [p for p in os.listdir('.')
+                   if p.endswith('.ttf') and not
+                   'Italic' in p]
+    for font_path in fonts_paths:
+        font = TTFont(font_path)
+
+        for i, component in enumerate(font['glyf'][BAD_GLYPH].components):
+            c_name = component.glyphName
+            if c_name in NEW_COORDS[font_path]:
+                font['glyf'][BAD_GLYPH].components[i].x = NEW_COORDS[font_path][c_name]
+
+        os.remove(font_path)
+        print('Rewriting ttf %s' % font_path)
+        font.save(font_path)
+    print 'Done!'
+
+if __name__ == '__main__':
+    main()