Replaced references php With vars

Done because differences between distros is quite big,
and this was the beter solution then using alot of if statements

List of changes:
* Replaced service names php"$phpver"-fpm with $phpFPMService
* Replaced PHPver in package list with phpPkgName
* Replaced full php config path with $phpMainConf
* Replaced php pool path with $phpPoolDir

CMS/Backend/conf.sh

@@ -1,6 +1,6 @@
 #Backend PHP Pool
-curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/CMS/Backend/Fpm-Pool.conf-unconfigured -o /etc/php/"$phpver"/fpm/pool.d/Backend.conf
-sed -i 's/PHPver/'$phpver'/' /etc/php/"$phpver"/fpm/pool.d/Backend.conf
+curl --retry 7 --retry-delay 5 -s "$repo"/raw/"$branchtype"/"$branch"/CMS/Backend/Fpm-Pool.conf-unconfigured -o "$phpPoolDir"/Backend.conf
+sed -i 's/PHPver/'$phpver'/' "$phpPoolDir"/Backend.conf
 groupadd Backend
 useradd -g Backend Backend
 #PHPMyAdmin configuration