Added logic to footer.html to show only permanent sponsors in the footer (Zopa autoremoved).

Modified all sponsor .md files accordingly.

Author: Tomasz-Kluczkowski

_includes/footer.html

@@ -14,20 +14,28 @@ <h2 class="footer__section-title">Our Sponsors</h2>
                 If not even the last row must contain 1 sponsor and be terminated with appropriate tags.
             {% endcomment %}
 
-            {% assign num_of_sponsors_even = true %}
             {% assign sponsors = "" | split: ',' %}
             {% for sponsor in site.sponsors %}
-                {% assign sponsors = sponsors | push: sponsor %}
+                {% if sponsor.permanent %}
+                    {% assign sponsors = sponsors | push: sponsor %}
+                {% endif %}
             {% endfor %}
             {% assign num_of_sponsors = sponsors | size %}
-            {% if num_of_sponsors | modulo: 2 > 0 %}
+            {% assign sponsors_remainder = num_of_sponsors | modulo: 2 %}
+
+            {% if sponsors_remainder == 0 %}
+                {% assign num_of_sponsors_even = true %}
+                {% assign row_num_modifier = 1 %}
+            {% else %}
                 {% assign num_of_sponsors_even = false %}
+                {% assign row_num_modifier = 0 %}
             {% endif %}
-            {% assign num_of_rows = num_of_sponsors | divided_by: 2 | floor %}
+
+            {% assign num_of_rows = num_of_sponsors | divided_by: 2 | floor | minus: row_num_modifier %}
             {% assign items_per_row = 1 %}
 
             {% for row in (0..num_of_rows) %}
-                {% if forloop.last == true and num_of_sponsors_even == false %}
+                {% if forloop.last and num_of_sponsors_even == false %}
                     {% assign items_per_row = 0 %}
                 {% endif %}
                 <div class="row">

_sponsors/bloomberg.md

@@ -3,5 +3,6 @@ sponsor_id: bloomberg
 sponsor_name: "Bloomberg"
 sponsor_logo: static/images/sponsors/bloomberg.png
 sponsor_link: https://www.bloomberg.com/careers/
+permanent: true
 ---
 Bloomberg L.P. provides financial software tools such as an analytics and equity trading platform, data services, and news to financial companies and organizations through the Bloomberg Terminal (via its Bloomberg Professional Service), its core revenue-generating product.

_sponsors/harvey_nash.md

@@ -3,6 +3,7 @@ sponsor_id: harvey_nash
 sponsor_name: "Harvey Nash"
 sponsor_logo: static/images/sponsors/harvey_nash.png
 sponsor_link: https://www.linkedin.com/in/hamishpitkeathly/
+permanent: true
 ---
 Harvey Nash specialise in professional recruitment.
 Since 1988, they supported many of the world's top organisations to recruit, source and manage the highly-skilled talent needed to succeed in an increasingly competitive world.

_sponsors/python_software_foundation.md

@@ -3,5 +3,6 @@ sponsor_id: python_software_foundation
 sponsor_name: "Python Software Foundation"
 sponsor_logo: static/images/sponsors/python_software_foundation.png
 sponsor_link: https://www.python.org/psf/
+permanent: true
 ---
 The Python Software Foundation (PSF) is a non-profit corporation that holds the intellectual property rights behind the Python programming language. We manage the open source licensing for Python version 2.1 and later and own and protect the trademarks associated with Python.

_sponsors/touch_surgery.md

@@ -3,5 +3,6 @@ sponsor_id: touch_surgery
 sponsor_name: "Touch Surgery"
 sponsor_logo: static/images/sponsors/touch_surgery.png
 sponsor_link: https://www.touchsurgery.com/jobs.html
+permanent: true
 ---
  The Touch Surgery platform is an interactive surgical simulator for healthcare professionals; providing a realistic and detailed guide to every step of a procedure. Users can quickly learn surgery, instantly test their knowledge, and rehearse for surgery.

_sponsors/zopa.md

@@ -3,5 +3,6 @@ sponsor_id: zopa
 sponsor_name: "Zopa"
 sponsor_logo: static/images/sponsors/zopa.png
 sponsor_link: https://www.zopa.com/
+permanent: false
 ---
 Zopa provide loans and offer competitive rates, flexible and intuitive products and award-winning customer service. They strive to make money simple and fair for everyone – to enable people to do more with their money and take control of their finances.