Description of problem:
Attempts to perform http installs from user websites fail due to extra / in URL.
 For example, attempting to install from http://192.168.1.1/~gboyce/redhat/ fail
on an attempt to retrieve http://192.168.1.1//~gboyce/redhat/stage.img.  The
extra slash seems to appear on all http installs, but apache deals with the
extra slash when the install isn't from a user directory

Version-Release number of selected component (if applicable):


How reproducible:
Every time

Steps to Reproduce:
1.Copy install sources to public_html
2.Kick off http install with http://server/~username/directory
3.Watch it fail to install
    
Actual results:
installer grabs http://192.168.1.1//~gboyce/redhat/stage.img

Expected results:
installer grabs http://192.168.1.1/~gboyce/redhat/stage.img

Additional info: