Merge branch 'remove-tusker' into 'master'

Remove Tusker software page.

See merge request !121

content/guides/running_applications/available_software_for_tusker.md

-+++
-title = "Available Software for Tusker"
-description = "List of available software for tusker.unl.edu."
-scripts = ["https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.1/js/jquery.tablesorter.min.js", "https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.1/js/widgets/widget-pager.min.js","https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.1/js/widgets/widget-filter.min.js","/js/sort-table.js"]
-css = ["http://mottie.github.io/tablesorter/css/theme.default.css","https://mottie.github.io/tablesorter/css/theme.dropbox.css", "https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.1/css/jquery.tablesorter.pager.min.css","https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.1/css/filter.formatter.min.css"]
-+++
-
-{{% notice tip %}}
-HCC provides some software packages via the Singularity container
-software. If you do not see a desired package in the module list below,
-please check the [Using Singularity]({{< relref "using_singularity" >}})
-page for the software list there.
-{{% /notice %}}
-
-{{% panel theme="warning" header="Module prerequisites" %}}
-If a module lists one or more prerequisites, the prerequisite module(s)
-must be loaded before or along with, that module.
-
-For example, the `cdo/2.1` modules requires `compiler/pgi/13.` To load
-the cdo module, doing either
-
-`module load compiler/pgi/13`
-
-`module load cdo/2.1`
-
-or
-
-`module load compiler/pgi/13 cdo/2.1` (Note the prerequisite module
-**must** be first.)
-
-is acceptable.
-{{% /panel %}}
-
-{{% panel theme="info" header="Multiple versions" %}}
-Some packages list multiple compilers for prerequisites. This means that
-the package has been built with each version of the compilers listed.
-{{% /panel %}}
-
-{{< table url="http://tusker-head.unl.edu:8192/lmod/spider/json" >}}