update comments from unoebauer

.travis.yml

@@ -24,6 +24,7 @@ env:
         - SETUP_CMD='test'
         - TEST_MODE='normal'
         - REF_DATA_HOME=$HOME/tardis-refdata
+        - REF_DATA_GITHUBURL = https://github.com/tardis-sn/tardis-refdata.git
         - MINICONDA_URL='http://repo.continuum.io/miniconda/Miniconda2-latest-Linux-x86_64.sh'
         - SAVE_COVERAGE=false
         - GIT_LFS_SKIP_SMUDGE=1
@@ -67,7 +68,7 @@ before_install:
     - source ci-helpers/install_miniconda.sh
     - if [[ $TEST_MODE == 'spectrum' ]]; then conda install -c conda-forge git-lfs=2.2.1 -y; fi
     - if [[ $TEST_MODE == 'spectrum' ]]; then git lfs install --skip-smudge; fi
-    - if [[ $TEST_MODE == 'spectrum' ]]; then git clone https://github.com/tardis-sn/tardis-refdata.git $REF_DATA_HOME; fi
+    - if [[ $TEST_MODE == 'spectrum' ]]; then git clone $REF_DATA_GITHUBURL $REF_DATA_HOME; fi
     - if [[ $TEST_MODE == 'spectrum' ]]; then cd $REF_DATA_HOME; fi
 # Use the following to get the ref-data from the master;
     - if [[ $TEST_MODE == 'spectrum' ]]; then git fetch origin; fi

ci-helpers/fetch_reference_data.sh

@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 git lfs install
 if test -e $REF_DATA_HOME; then
     echo "Ref data available"

ci-helpers/install_miniconda.sh

@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 export PYTHONIOENCODING=UTF8
 if test -e $HOME/miniconda/bin; then
     echo "miniconda already installed.";

ci-helpers/install_tardis_env.sh

@@ -1,6 +1,8 @@
+#!/usr/bin/env bash
 cd $TRAVIS_BUILD_DIR
 if test -e $HOME/miniconda/envs/tardis; then
     echo "TARDIS env already installed.";
+    # Also check for tardis_env27.yml change
 else
    conda env create -f tardis_env27.yml
 fi