Update .travis.yml

Author: bgruening

.travis.yml

@@ -14,12 +14,14 @@ before_install:
   - export PLANEMO_CONDA_PREFIX="$HOME/conda"
 
 install:
-  # html5lib (planemo dep) requires setuptools >= 18.5
-  - pip install -q flake8 planemo
-  - planemo conda_init
-  - export PATH="$PLANEMO_CONDA_PREFIX/bin:$PATH"
-  - conda create -y -q -c bioconda --name iuc_conda samtools=0.1.19 bcftools
-  - . activate iuc_conda
+  - pip install --upgrade setuptools
+  - pip install -q click==5.1
+  - pip install -q planemo
+  - planemo conda_init --conda_prefix $CONDA_PREFIX
+  - export PATH=$CONDA_PREFIX/bin:$PATH
+  - conda install -y -q conda=3.19.3
+  - conda create -y -q -c bioconda --name iuc_conda numpy==1.9.2 samtools bcftools
+  - source activate iuc_conda
   - planemo --version
   - conda --version
   - echo $TRAVIS_COMMIT_RANGE