Mario de Sousa <msousa@fe.up.pt> [Tue, 25 Dec 2018 11:10:11 +0000] rev 1076
partial fix for issue 74: allow deref of REF in left hand side of assignment (only works in FUNCTIONS for now)
Mario de Sousa <msousa@fe.up.pt> [Fri, 21 Dec 2018 17:32:36 +0000] rev 1075
fix issue #78: IL NOT operator not working
Mario de Sousa <msousa@fe.up.pt> [Thu, 20 Dec 2018 18:55:22 +0000] rev 1074
fix issue#77 - when IL FB followed by SFC FB, non-existant error was detected in IL code.