Merge pull request #205 from apeltzer/dev

Fix python dependency to 3.6.3 for now

Author: apeltzer

environment.yml

@@ -29,5 +29,5 @@ dependencies:
   - bioconda::bamutil=1.0.14
   - bioconda::mtnucratio=0.5
   - pysam=0.15.2
-  - python=3.7.3
+  - python=3.6.3
   #Missing Schmutzi,snpAD