Don't run long running and redundant tests by default

use --run-donttest to run them

Change-Id: Idec047eff02b9a3e2dababc6c6fc0347ca43e5de
diff --git a/man/ci.Rd b/man/ci.Rd
index ee6e18d..6cf9bef 100644
--- a/man/ci.Rd
+++ b/man/ci.Rd
@@ -23,6 +23,7 @@
 3. upper bound of a confidence interval
 }
 \examples{
+\donttest{
 library(ggplot2)
 kco <- new("KorAPConnection", verbose=TRUE)
 expand_grid(year=2015:2018, alternatives=c("Hate Speech", "Hatespeech")) \%>\%
@@ -31,7 +32,7 @@
   ci() \%>\%
   ggplot(aes(x=year, y=f, fill=query, color=query, ymin=conf.low, ymax=conf.high)) +
     geom_point() + geom_line() + geom_ribbon(alpha=.3)
-
+}
 }
 \seealso{
 \code{ci} is alread included in \code{\link{frequencyQuery}}