guillermooo/Vintageous — pull request #756 by guillermooo (2014-10-06 21:30:23+00:00)
Title: fix #755 - macros: avoid KeyError for 'a' vs 'A'

Treat all register names as lowercase. At the moment, there is no
difference between 'a' and 'A', i. e., 'A' will not append
commands to the existing macro.