Merge pull request #849 from tripal/install-patch-1

Update install_drupal.rst

docs/user_guide/install_tripal/manual_install/install_drupal.rst

@@ -52,26 +52,26 @@ Substitute [user] for the name of the user that will own the web files.
 
   The apache web server runs as the user 'www-data'.  For security reasons you should chose a user other than 'www-data' to be the owner of the Drupal root directory.
 
-Tripal 3.x requires version 7.x of Drupal. Drupal can be freely downloaded from the http://www.drupal.org website. At the writing of this Tutorial the most recent version of Drupal 7 is version 7.59. The software can be downloaded manually from the Drupal website through a web browser or we can use the ``wget`` command to retrieve it:
+Tripal 3.x requires version 7.x of Drupal. Drupal can be freely downloaded from the http://www.drupal.org website. At the writing of this Tutorial the most recent version of Drupal 7 is version 7.64. The software can be downloaded manually from the Drupal website through a web browser or we can use the ``wget`` command to retrieve it:
 
 .. code-block:: bash
 
   cd $DRUPAL_HOME
-  wget http://ftp.drupal.org/files/projects/drupal-7.59.tar.gz
+  wget http://ftp.drupal.org/files/projects/drupal-7.64.tar.gz
 
 
 Next, we want to install Drupal. We will use the tar command to uncompress the software:
 
 .. code-block:: bash
 
-  tar -zxvf drupal-7.59.tar.gz
+  tar -zxvf drupal-7.64.tar.gz
 
-Notice that we now have a drupal-7.59 directory with all of the Drupal files. We want the Drupal files to be in our document root, not in a 'drupal-7.59' subdirectory. So, we'll move the contents of the directory up one level:
+Notice that we now have a drupal-7.64 directory with all of the Drupal files. We want the Drupal files to be in our document root, not in a 'drupal-7.64' subdirectory. So, we'll move the contents of the directory up one level:
 
 .. code-block:: bash
 
-  mv drupal-7.59/* ./
-  mv drupal-7.59/.htaccess ./
+  mv drupal-7.64/* ./
+  mv drupal-7.64/.htaccess ./
 
 If an index.html file is present (as is the case with Ubuntu installations) you can move it out of the way so that it does not interfere with Drupal by executing the following:
 

docs/user_guide/install_tripal/server_setup/ubuntu_18.04.rst

@@ -63,7 +63,7 @@ Drupal uses PHP.   In Ubuntu 18.04 there are two different instances of PHP that
 
 .. code-block:: bash
 
-  sudo apt-get install php php-dev php-cli libapache2-mod-php
+  sudo apt-get install php php-dev php-cli libapache2-mod-php php7.2-mbstring
 
 You may notice that installing the libapach2-mod-php module will automatically restart the Apache web server which will allow it to parse PHP files.  Next, we need a few additional extension modules for PHP that support connection to a PostgreSQL database server, JSON and the GD graphics library: