adding annotations removes tick labels

[ericphanson]

E.g.

using GRUtils
labels = string.('a':'f')
vals = rand(6)*10
barplot(labels, vals)

Looks fine, but if we add annotations:

annotations(1:6, vals .+1, string.(round.(vals; digits=2)), halign="center")

we lose every other tick label. We can fix it by xticks(1) though:

xticks(1)

[heliosdrm]

Thanks for reporting. It should be fixed by #89, I hope.