Update release 100 branch with all the latest commits from master

Created by: msmanoj

roles/rest/tasks/main.yml

@@ -30,10 +30,10 @@
        - { repo: 'https://github.com/Ensembl/loftee.git', dir: loftee, version: "{{ loftee_version }}" }
   when: rest_dir_exists
 
-- name: Add Loftee to the path
+- name: Add Loftee to the PERL5LIB
   lineinfile:
     dest="{{ PERL_RC | default('~/.bashrc') }}"
-    line="export PATH={{ ensembl_install_dir }}/loftee:$PATH"
+    line="export PERL5LIB={{ ensembl_install_dir }}/loftee:$PERL5LIB"
   when: rest_dir_exists
 
 - name: Set LD_LIBRARY_PATH for local packages