Refactor Fedora support

quickget

@@ -507,27 +507,29 @@ function get_freebsd() {
 }
 
 function get_fedora() {
-    # For future releases, use dvd1 iso files.
+    local FEDORA_RELEASE=""
+    local FEDORA_VERSIONS=""
+    local ISO=""
     local URL=""
-    local VERSION=""
+    local SHA256SUM=""
+    local VERSION_NUM=""
+    local RELEASES=""
 
-    case ${RELEASE} in
-        33|34|35_beta) VERSION=${RELEASE};;
-        *)
-            echo "ERROR! Fedora ${RELEASE} is not a supported release."
-            releases_fedora
-            exit 1
-            ;;
-    esac
+    RELEASES=$(releases_fedora)
+    if [[ "${RELEASES}" != *"${RELEASE}"* ]]; then
+        echo "ERROR! Fedora ${RELEASE} is not a supported release."
+        echo "${RELEASES}"
+        exit 1
+    fi
 
     FEDORA_VERSIONS=$(wget -q -O- "https://getfedora.org/releases.json" | jq '.[] | select((.variant=="Workstation" or .variant=="Spins") and .arch=="x86_64")')
-    if [[ $VERSION == *"beta"* ]]; then
-        VERSION_NUM=${VERSION%"_beta"}
-        FEDORA_RELEASE=$(echo ${FEDORA_VERSIONS} | jq -c '. | select(.version | contains("Beta"))' | jq '. | select(.variant=="Workstation")')
+    if [[ "${RELEASE}" == *"beta"* ]]; then
+        VERSION_NUM=${RELEASE%"_beta"}
+        FEDORA_RELEASE=$(echo "${FEDORA_VERSIONS}" | jq -c '. | select(.version | contains("Beta"))' | jq '. | select(.variant=="Workstation")')
         ISO="Fedora-Workstation-Live-x86_64-${VERSION_NUM}_Beta-1.2.iso"
     else
-        FEDORA_RELEASE=$(echo ${FEDORA_VERSIONS} | jq '. | select(.variant=="Workstation" and .version=="'${VERSION}'")')
-        ISO="Fedora-Workstation-Live-x86_64-${VERSION}-1.2.iso"
+        FEDORA_RELEASE=$(echo "${FEDORA_VERSIONS}" | jq '. | select(.variant=="Workstation" and .version=="'${RELEASE}'")')
+        ISO="Fedora-Workstation-Live-x86_64-${RELEASE}-1.2.iso"
     fi
 
     URL=$(echo "${FEDORA_RELEASE}" | jq -r '.link')