Fix a few minor issues with the "Bootstrap" contribut method (biocond…

…a#10668)

* Hide 'bioconda-utils not found' output

If bioconda-utils is not found, we get:
'.circleci/setup.sh: line 34: type: bioconda-utils: not found'

This is confusing since it is not an error: we _are_ actually checking
for bioconda-utils to see if we need to install it!

* Give the path to .circleci/setup.sh when bootstrapping.

On OSX, utilities like md5 are found in /sbin, which was not on the path
when running the .circleci/setup.sh, which in turn ran the miniconda
setup, which in turn ran md5.

.circleci/setup.sh

@@ -31,7 +31,7 @@ fi
 git remote remove $UPSTREAM_REMOTE
 
 
-if ! type bioconda-utils > /dev/null || [[ $BOOTSTRAP == "true" ]]; then
+if ! type bioconda-utils 2> /dev/null || [[ $BOOTSTRAP == "true" ]]; then
     echo "Setting up bioconda-utils..."
 
     # setup conda and bioconda-utils if not loaded from cache

bootstrap.py

@@ -106,7 +106,7 @@ def _write_custom_activate(install_path):
 if args.no_docker:
     use_docker = "false"
 
-env = {'WORKSPACE': args.bootstrap, 'BOOTSTRAP': "true", 'USE_DOCKER': use_docker}
+env = {'WORKSPACE': args.bootstrap, 'BOOTSTRAP': "true", 'USE_DOCKER': use_docker, 'PATH': os.environ['PATH']}
 sp.check_call(['.circleci/setup.sh'], env=env)
 _write_custom_activate(args.bootstrap)