do not include sc.ini in zip files!

[IntegratedDimensions via Digitalmars-d]

Any custom modification swill overwrite the original sc.ini file. 
The compiler should copy(rename) or create the file on demand 
when it is ran and does not exist in the same path as the 
compiler.

This way one can unzip over a previous install without losing the 
original sc.ini file. It is a pain to have to remember to back it 
up every time(given if one updates slowly).

That or simply let an alternative "sc.ini" file be used if it 
exists.

e.g., if sc-main.ini exists then it will use that first and if 
not then it defaults to sc.ini. sc-main.ini is not included in 
the distribution.