Mario de Sousa <msousa@fe.up.pt> [Wed, 26 Dec 2018 19:36:03 +0000] rev 1085
fix issue #73: add missing overloaded functions ADD, SUB, MUL and DIV for TIME, TOD, DT, ...
Mario de Sousa <msousa@fe.up.pt> [Wed, 26 Dec 2018 12:39:41 +0000] rev 1084
remove debugging printf() introduced in previous commits
Mario de Sousa <msousa@fe.up.pt> [Wed, 26 Dec 2018 12:02:13 +0000] rev 1083
merge