Improved environment setup

• Nice singularity prompt
• Use ls colors
• More transparent environment setup (copy scripts instead of writing them in the Dockerfile)
• Double-check all still works

containers/jug/profile.d/a00_cleanup.sh

@@ -14,16 +14,3 @@ export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
 [ ! -z "$CMAKE_PREFIX_PATH" ] && unset CMAKE_PREFIX_PATH
 [ ! -z "$SOFTWARE_HOME" ] && unset SOFTWARE_HOME
 [ ! -z "$ROOTSYS" ] && unset ROOTSYS
-
-export PS1='eic-shell> \[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
-export LS_COLORS='rs=0:di=01;34:ln=01;36:mh=00:pi=40;33'
-export GREP_OPTIONS='--color=auto'
-
-function ls {
-    /bin/ls --color=auto
-  }
-function less {
-    /usr/bin/less -RAW_CONTROL_CHARS
-  }
-export -f ls
-export -f less