Merge pull request #71 from inbo/travisyml

Update .travis.yml: use Bionic, install libs

.travis.yml

@@ -1,19 +1,26 @@
+addons:
+ apt:
+ sources:
+ - sourceline: 'ppa:ubuntugis/ubuntugis-unstable'
+ packages:
+ - libudunits2-dev
+ - libgdal-dev
+ - libproj-dev
+ - libgeos-dev
+ - libfftw3-dev
+ - libfribidi-dev
+
 language: r
+
+dist: bionic
+
 cache: packages
 
 r_packages:
  - pkgdown
 
-r_github_packages:
- - inbo/inborutils
-
-apt_packages:
- - libudunits2-dev # For inborutils
- - libgdal1-dev # For inborutils
- - libfftw3-dev # For watina
-
 after_success:
- - R CMD INSTALL . # Install the package to build vignettes
+ - R CMD INSTALL .
  - Rscript -e "pkgdown::build_site(preview = FALSE)"
 
 deploy: