Font family case-sensitiveness

[Thomas Arnhold]

Hi,

A quick grep on the source reveals that there case-sensitive and 
case-insensitive comparisons for the font family name. This looks pretty 
suspicious.

git grep -i \"starsymbol\" -- *.cxx

Should we always check case-insensitive or convert all lower-case ones 
to "StarSymbol" (most/all? definitions of this string are mixed case).

The same holds for "opensymbol". Maybe more...

And maybe there is more work with GetFamilyName()..., see 
79e5615fa103a52ce41ed682b624c13fd9a9d1eb.

Ideas?

Thomas