If running se-setup.sh e.g. from the ochami-vm repo root:

[user@host ochami-vm]$ pwd
/home/user/ochami-vm
[user@host ochami-vm]$ ./s3-utils/s3-setup.sh
[user@host ochami-vm]$ echo $PATH
...:/home/user/ochami-vm/bin

Running s3-setup.sh puts '/home/user/ochami-vm/bin' in the PATH when it should be '/home/user/ochami-vm/s3-utils/bin'.

This commit fixes this so no matter from which working directory the script is run from, the correct path is put into PATH.