Fix test for Julia-1.0 by omitting Poppler_jll there

.travis.yml

@@ -5,7 +5,7 @@ coveralls: true
 julia:
   - 1.0
   - 1.3
-  - 1.4
+  - 1.5
 notifications:
   email: false
 before_install:

test/runtests.jl

@@ -6,6 +6,10 @@ svgBackends = [
     "testPic.poppler.svg" => PopplerBackend(),
     "testPic.dvisvgm.svg" => DVIBackend()
 ]
+if VERSION < v"1.3"
+    deleteat!(svgBackends, 2)
+    @warn "Not testing PopplerBackend on Julia versions < 1.3"
+end
 
 # Pre-test cleanup (for repeated tests)
 for file in ["testPic.pdf", "testPic.svg", "testDoc.pdf", "testDoc.tex", first.(svgBackends)...]