Glyph set expanded and backslash updated

Glyph set has been expanded with the following characters:

Ċ Đ Ĕ Ė Ğ Ģ Ġ Ħ IJ Ĭ İ Į Ĩ Ķ Ļ Ŀ Ņ Ŋ Ŏ Ŗ Ŧ Ų Ũ Ŵ Ŷ Ÿ ċ ĕ ė ğ ģ ġ ı ĭ ij į ĩ ķ ĸ ļ ŀ ʼn ņ ŏ ŗ ſ ŧ ų ũ ŵ ŷ fi fl Ѓ Ґ Ќ Ў Џ Љ Њ Ѕ Є І Ї Ј Ћ Ђ ѓ ґ ќ ў џ љ њ ѕ є і ї ј ћ ђ Ά Έ Ή Ί Ό Ύ Ώ Ϋ ί ϊ ΐ ύ ϋ ΰ ό ώ ά έ ή ⁴ ⁄ ‚ „ ‹ › ƒ ≥ ≤ ∏ µ ◊ ™ ˆ ˚ ΄ ΅

Additionally, the backslash glyph has been swapped from the JIS standard Yen form, to the Unicode standard backslash glyph.

Also other small metadata fixes.