Install flexlambda- and master-lme4 from Github

Hello,

is it possible to install the flexlambda and master branch of lme4 at the
same time:

library(devtools)
install_github("lme4", "lme4")
install_github("lme4", "flexlambda")

such that I can load them as different packages. (Obviously not both at the
same time but for example in two different sessions; using "lme4" in one
and "flexlambda" in the other)?

Best,
Christian

Eberhard Karls Universit?t T?bingen
Mathematisch-Naturwissenschaftliche Fakult?t - Faculty of Science
Evolutionary Cognition - Cognitive Science
Schleichstra?e 4 ? 72076 T?bingen ? Germany
Telefon +49 7071 29-75643 ? Telefax +49 7071 29-4721
christian.brauner at uni-tuebingen.de