devel/renpy: update to 6.99.12.3
6.99.12.3.2123: February 12, 2017
This release fixes a number of bugs. It also adds and renames gui
variables so that every text property can be controlled by a gui
variable, and adds support for the new Ren'Py Interactive Director.Changes: https://www.renpy.org/doc/html/changelog.html#ren-py-6-99-12-3
MFH: 2017Q1