Keep conda off of path, seems to conflict with planemo installed outside of conda env

Author: mvdbeek

.travis.yml

@@ -15,12 +15,11 @@ before_install:
 install:
   - pip install flake8 planemo
   - planemo conda_init
-  - export PATH="$PLANEMO_CONDA_PREFIX/bin:$PATH"
-  - conda update -y conda
-  - conda create -y -q -c bioconda --name iuc_conda samtools=0.1.19 bcftools
-  - . activate iuc_conda
+  - $PLANEMO_CONDA_PREFIX/bin/conda update -y conda
+  - $PLANEMO_CONDA_PREFIX/bin/conda create -y -q -c bioconda --name iuc_conda samtools=0.1.19 bcftools
+  - . $PLANEMO_CONDA_PREFIX/bin/activate iuc_conda
   - planemo --version
-  - conda --version
+  - $PLANEMO_CONDA_PREFIX/bin/conda --version
   - git diff --quiet "$TRAVIS_COMMIT_RANGE" -- ; GIT_DIFF_EXIT_CODE=$?
   - |
     if [ "$GIT_DIFF_EXIT_CODE" -gt 1 ] ; then