Added CI for i2dash

.ci/requirements.txt

+r-assertive.sets
+r-base
+r-flexdashboard
+r-knitr
+r-yaml
+zip
\ No newline at end of file

.ci/setup.sh

+#!/bin/bash
+
+set -eo pipefail
+
+#
+# Set up correct channel order
+#
+conda config --system --add channels defaults
+conda config --system --add channels bioconda
+conda config --system --add channels conda-forge
+
+#
+# Install packages from requirements
+#
+conda install -q -y --file .ci/requirements.txt
+
+conda clean -q -y --all

.gitlab-ci.yml

+image: continuumio/miniconda3:4.5.13
+
+stages:
+  - build
+  - check
+
+before_script:
+  - .ci/setup.sh
+
+build:
+  stage: build
+  tags:
+    - docker
+  script:
+    - R CMD build .
+  artifacts:
+    paths:
+      - i2dash_*.tar.gz
+    name: "$CI_COMMIT_REF_NAME-builds"
+
+check:
+  stage: check
+  tags:
+    - docker
+  variables:
+    http_proxy: http://www-proxy.t-online.de:80
+    R_ZIPCMD: /opt/conda/bin/zip
+  script:
+    - R CMD check *tar.gz --as-cran --no-manual
+  artifacts:
+    expire_in: 1 week
+    paths:
+      - i2dash.Rcheck/*