Update global.R

making sure devtools is installed correctly

Author: dgrapov

global.R

@@ -36,7 +36,7 @@ source.local.dir(paste0(getwd(),"/R")) # final
 
 # install.packages("devtools")
 if(!require(plotly)){
-	if(!require(devtools)){install.packages(devtools)}
+	if(!require(devtools)){install.packages("devtools")}
 	library("devtools")
 	install_github("ropensci/plotly")
 	library(plotly)