Make install more reliable

.mgr_config/install.sh

@@ -19,11 +19,11 @@ if [[ $NEEDS_GIT_DIR != 0 ]]; then
   echo "Setting up git repository."
   git init --bare ~/.git_home/
   git-home remote add origin https://gitlab.maxregan.me/max/configs.git
-  git-home pull origin master
+  git-home branch master --set-upstream-to origin/master
 fi
 
 echo "Checking out configs."
-git-home checkout -b master origin/master
+git-home pull origin master
 if [[ $? != 0 ]]; then
   echo "Failed to checkout sources, there may be a conflicting file from the distribution. Fix and try again"
   exit 1