fix a few broken links in the homepage, closes #20

Makefile

@@ -4,7 +4,7 @@ all: core
 .PHONY: all core c r python
 
 CVERSION?=0.8.0
-RVERSION?=1.2.4.1
+RVERSION?=1.2.4.2
 PYVERSION?=master
 
 CREPO=https://github.com/igraph/igraph

_includes/rbasepkg

@@ -1 +1 @@
-<a href="http://www.inside-r.org/r-doc/{{ include.p }}"><code class="rpkg">{{ include.p }}</code></a>
+<a href="https://rdrr.io/r/{{ include.p }}/{{ include.p }}-package.html"><code class="rpkg">{{ include.p }}</code></a>

_includes/rpkg

@@ -1 +1 @@
-<a href="http://www.inside-r.org/packages/cran/{{ include.p }}"><code class="rpkg">{{ include.p }}</code></a>
+<a href="https://rdrr.io/cran/{{ include.p }}/"><code class="rpkg">{{ include.p }}</code></a>

docs/r/index.html

@@ -195,17 +195,17 @@ <h3><span id="rreqopt" class="anchor">&nbsp;</span>
               is needed for the ability of reading GraphML files. On
               Ubuntu and Debian Linux the <code>lixml2</code> and
               <code>libxml2-dev</code> packages are needed.</li>
-            <li>The <a href="http://www.inside-r.org/r-doc/tcltk"><code class="rpkg">tcltk</code></a>
+            <li>The <a href="https://rdrr.io/r/tcltk/tcltk-package.html"><code class="rpkg">tcltk</code></a>
  R package is needed for
               <a href="/r/doc/tkplot.html"><code class="rfun">tkplot</code></a>
  and 
               <a href="/r/doc/tkigraph.html"><code class="rfun">tkigraph</code></a>
  to work.</li>
-            <li>The <a href="http://www.inside-r.org/packages/cran/rgl"><code class="rpkg">rgl</code></a>
+            <li>The <a href="https://rdrr.io/cran/rgl/"><code class="rpkg">rgl</code></a>
  R package is needed for
               <a href="/r/doc/rglplot.html"><code class="rfun">rglplot</code></a>
  to work.</li>
-            <li>The <a href="http://www.inside-r.org/packages/cran/ape"><code class="rpkg">ape</code></a>
+            <li>The <a href="https://rdrr.io/cran/ape/"><code class="rpkg">ape</code></a>
  package is needed to
               plot nice dendrograms with 
               <a href="/r/doc/dendPlot.html"><code class="rfun">dendPlot</code></a>
@@ -223,18 +223,17 @@ <h3><span id="rdoc1" class="anchor">&nbsp;</span>Tutorials</h3>
 <!--             <li>Some screenshots and examples are -->
 <!--               <a href="">here.</a></li>           -->
             <li>Type in <code>demo(package="igraph")</code> 
-              (or use <a href="/r/doc/igraphdemo.html"><code class="rfun">igraphdemo</code></a>
- if you have
+              (or use <a href="https://igraph.org/r/doc/igraph_demo.html">igraphdemo()</a> if you have
               <span style="white-space:nowrap;">
-                <a href="http://www.inside-r.org/r-doc/tcltk"><code class="rpkg">tcltk</code></a>
+                <a href="https://rdrr.io/r/tcltk/tcltk-package.html"><code class="rpkg">tcltk</code></a>
 )</span> to get a list of
               demos.</li>
           </ul>
         </p>
 
         <div class="page-header">
           <h1><span id="docs" class="anchor">&nbsp;</span>Documentation
-          <small>&ndash; for version 1.2.4.1
+          <small>&ndash; for version 1.2.4.2
 </small></h1>
         </div>
 
@@ -276,7 +275,7 @@ <h1><span id="downloads" class="anchor">&nbsp;</span>Downloads</h1>
 
         <h3><span id="rdown" class="anchor">&nbsp;</span>
     Latest stable version
-    &ndash; 1.2.4.1
+    &ndash; 1.2.4.2
 
     </h3>
         <p>
@@ -287,13 +286,13 @@ <h3><span id="rdown" class="anchor">&nbsp;</span>
         <p>
           <ul class="icons-ul list-unstyled">
             <li><i class="icon-li icon-windows"></i>
-              <a href="https://cran.r-project.org/bin/windows/contrib/3.6/igraph_1.2.4.1
+              <a href="https://cran.r-project.org/bin/windows/contrib/r-release/igraph_1.2.4.2
 .zip">Windows binary package</a></li>
             <li><i class="icon-li icon-apple"></i>
-              <a href="https://cran.r-project.org/bin/macosx/el-capitan/contrib/3.6/igraph_1.2.4.1
+              <a href="https://cran.r-project.org/bin/macosx/el-capitan/contrib/r-release/igraph_1.2.4.2
 .tgz">Mac OS X universal binary package</a></li>
             <li><i class="icon-li icon-file-text"></i>
-        <a href="https://cran.r-project.org/src/contrib/igraph_1.2.4.1
+        <a href="https://cran.r-project.org/src/contrib/igraph_1.2.4.2
 .tar.gz">Source package</a></li>
           </ul>
         </p>

r/index.html

@@ -113,7 +113,7 @@ <h3><span id="rdoc1" class="anchor">&nbsp;</span>Tutorials</h3>
 <!--             <li>Some screenshots and examples are -->
 <!--               <a href="">here.</a></li>           -->
             <li>Type in <code>demo(package="igraph")</code> 
-              (or use {% include rfun f="igraphdemo" %} if you have
+              (or use <a href="https://igraph.org/r/doc/igraph_demo.html">igraphdemo()</a> if you have
               <span style="white-space:nowrap;">
                 {% include rbasepkg p="tcltk" %})</span> to get a list of
               demos.</li>
@@ -173,9 +173,9 @@ <h3><span id="rdown" class="anchor">&nbsp;</span>
         <p>
           <ul class="icons-ul list-unstyled">
             <li><i class="icon-li icon-windows"></i>
-              <a href="https://cran.r-project.org/bin/windows/contrib/3.6/igraph_{% include igraph-rversion %}.zip">Windows binary package</a></li>
+              <a href="https://cran.r-project.org/bin/windows/contrib/r-release/igraph_{% include igraph-rversion %}.zip">Windows binary package</a></li>
             <li><i class="icon-li icon-apple"></i>
-              <a href="https://cran.r-project.org/bin/macosx/el-capitan/contrib/3.6/igraph_{% include igraph-rversion %}.tgz">Mac OS X universal binary package</a></li>
+              <a href="https://cran.r-project.org/bin/macosx/el-capitan/contrib/r-release/igraph_{% include igraph-rversion %}.tgz">Mac OS X universal binary package</a></li>
             <li><i class="icon-li icon-file-text"></i>
         <a href="https://cran.r-project.org/src/contrib/igraph_{% include igraph-rversion %}.tar.gz">Source package</a></li>
           </ul>