Enhance the cd command in cmd

Add some new features to the cd command:
* `cd`: go to %HOME% or %USERPROFILE%
* `cd -`: go to previous directory
* `h`: show 10 lines of history
* `cd [0-9]`: go to the history lines passed in parameter
* `p`: pop the last line in the history, and go there (sort of undo cd)

Also, no need to pass the `/d` parameter anymore, cd will change the
drive automatically.

config/aliases

@@ -1,7 +1,10 @@
 e.=explorer .
 gl=git log --oneline --all --graph --decorate  $*
 ls=ls --color $*
-pwd=cd
+pwd=chdir
 clear=cls
 history=cat %CMDER_ROOT%\config\.history
 unalias=alias /d $1
+cd=cdplus.bat $*
+h=cdplus /h $1
+p=cdplus /p