beremiz

file isExecutable
fix issue that if located variable was dropped in location column, then address was changed in wrong row (row - 1).

It's not neccessary to carry about label size. YToRow() does the work.
<xsd:attribute name="Compiler" type="xsd:string" use="optional" default="gcc"/>
<xsd:attribute name="CFLAGS" type="xsd:string" use="optional" default=""/>
<xsd:attribute name="Linker" type="xsd:string" use="optional" default="gcc"/>
<xsd:attribute name="LDFLAGS" type="xsd:string" use="optional" default=""/>