Rewrite install procedure and fix #151

[flagarde]

Hi, I have fixed some problems on the install (some still remains) and fixed #151

[MCWertGaming]

Those changes look good, thank you really much! I just have some questions added.

Besides that please give your commits names that explain what you have done and at best also why you did it. It makes it a lot easier for me to review you changes and understand why things were changed. If the changes are small and just fix something git has the option to amend a commit using git commit --ammend. It basically adds the new changes to the last commit (you need to force push here though otherwise git might do a fast forward pull before pushing which then creates a merge commit).