seems that --use-mirrors is ATM borked. 
Anyway, --use-mirrors is going to de deprecated in future releases of pip.
Pypi infrastructure is more reliable than a year ago, let's hope we don't incur in any
downtimes.
Merge pull request #193 from niphlod/fix/pip_use_mirrors

seems that --use-mirrors is ATM borked.
partially fixed issue 1502
fixed issue 1658, unicode in admin/languages/de.py
fixed issue 1657
possibly fixed issue 1637:when trying to use IS_IN_DB with a composite reference key, there is a no _id error reported
fixed issue 1590
fixed issue 1616:possible problem with hideerror for list:string
Wiki(..., force_render=True)
admin design page should not show more than 1000 files
multiple renderers for wiki (issue 1298), thanks Alan and sorry this took forever
fixed issue 1342:MySQL, self-reference, and null values
better import errors (issue 1368)
fixed issue 813:archive table current_record field label is translated by default
Fixing some typos inside tests and unneeded modules
backported safe_eval to python 2.5
backported safe_eval to python 2.5
Merge pull request #194 from alfonsodg/master

Fixing some typos inside tests and unneeded modules
fixed issue 1507, menu links problems with mobile user agent, thanks Paolo Valleri