Brings all directory stuff to directories.zsh

- Cleans out aliases.zsh.
- Removes unneeded cd function.

lib/aliases.zsh

@@ -1,11 +1,3 @@
-# Push and pop directories on directory stack
-alias pu='pushd'
-alias po='popd'
-
-# Basic directory operations
-alias ...='cd ../..'
-alias -- -='cd -'
-
 # Super user
 alias _='sudo'
 alias please='sudo'
@@ -25,11 +17,6 @@ then
 else
     alias history='fc -l 1'
 fi
-# List direcory contents
-alias lsa='ls -lah'
-alias l='ls -lah'
-alias ll='ls -lh'
-alias la='ls -lAh'
 
 alias afind='ack-grep -il'