#77 Directive SUPPORT_ROUNDTO wasn't included with D2010

[Jakub Moycho]

I don't know when exactly was introduced RoundTo with two arguments.
But it exists in Delphi 7.

So
{$ifdef Delphi_2010}
{$define SUPPORT_ROUNDTO} // RoundTo was included with 2010 it seems
{$endif}

should be changed to

{$ifdef Delphi_7}
{$define SUPPORT_ROUNDTO}
{$endif}

[Jakub Moycho]

Of course, not the directive SUPPORT_ROUNDTO wasn't included with D2010.
The RoundTo function wasn't included with D2010 but earlier.

[LS Ploeger]

I modified dbf_common.inc to define SUPPORT_ROUNDTO since Delphi 7.