Merge pull request #16 from adamd3/develop

Fixes #15

The conda env should be activated in nextflow config by setting `conda.enabled`. 
The previous config was setting a custom parameter (`params.enable_conda`) that is now defunct.

Author: adamd3

nextflow.config

@@ -45,7 +45,7 @@ params {
 
 profiles {
     conda {
-        params.enable_conda    = true
+        conda.enabled          = true
         process.conda          = "$baseDir/environment.yml"
         conda.createTimeout    = '2 h'
         // includeConfig 'configs/container.config'