parRSB/gslib fail to update properly

[dshaver-ANL]

$makenek clean doesn't delete the unpacked versions of parRSB and gslib. When parRSB, for example, is updated, the user needs to manually delete the Nek5000/3rd_party/parRSB/parRSB directory for the new version to be downloaded and installed. The install script only checks for the existence of the tool subdirectory when deciding if it needs to download a new tarball, not whether it is the correct version. We could tag the subdirectory with the version number to make sure it's always consistent with the version of Nek. Something like:

#!/bin/bash
set -e

VER=0.9.2

if [ "$1" == "clean" ]; then
  rm -rf parRSB_v$VER/build lib include 2>/dev/null
  exit 0
fi

if [ -f ./lib/libparRSB.a ]; then
  exit 0
fi

if [ ! -d ./parRSB_v$VER ]; then
  rm -rf ./parRSB* 2>/dev/null #delete any version that might already exist
  wget --no-check-certificate -O v$VER.tar.gz https://github.com/Nek5000/parRSB/archive/v$VER.tar.gz
  mkdir parRSB_v$VER
  tar -zxvf v$VER.tar.gz -C ./parRSB_v$VER --strip-components=1
fi

cd parRSB_v$VER
set -x
make lib install $PARRSB_OPT
set +x