tools: Upgrade upip to 0.7.

SSL certificate warning, switch to uerrno, and better usage message.

tools: Upgrade upip to 0.7.
cbe544a7 · Paul Sokolovsky · 2ec0ee08 · 2ec0ee08 · cbe544a7
Commit cbe544a7 authored May 27, 2016 by Paul Sokolovsky
--- a/tools/micropython-upip-0.6.3.tar.gz
+++ b/tools/micropython-upip-0.6.3.tar.gz
--- a/tools/micropython-upip-0.7.tar.gz
+++ b/tools/micropython-upip-0.7.tar.gz