Conda package based CI

Fixes #35 (closed) and #48 (closed)

gitlab/build.sh

@@ -4,7 +4,7 @@
 source $(dirname ${0})/functions.sh
 
 run_cmd ${CONDA_FOLDER}/bin/conda install -n root --yes --quiet conda=4 conda-build=3
-run_cmd ${CONDA_FOLDER}/bin/conda config --set always_yes true
+run_cmd ${CONDA_FOLDER}/bin/conda config --set always_yes yes --set changeps1 no
 run_cmd ${CONDA_FOLDER}/bin/conda config --set show_channel_urls true
 run_cmd ${CONDA_FOLDER}/bin/conda clean --lock
 run_cmd cp _ci/conda_build_config.yaml conda/