2 May 1203 (2 May 2019): Added ability to arbitrarily label both the left and right sides of the line. Version 2.0. X Sept 1202 (10 Sept 2018): Removed *requirement* for hyperref by inserting a fake definition for \phantomsection, which is the only hyperref command used. 17 June 1201 (19 June 2017): Version 1.0, initial release.