Revert "[travis] Avoid pip progress bar which can increase the log size substantially"
Revert "[travis] Avoid pip progress bar which can increase the log size substantially"

This reverts commit 7eb7a5e44bcc29538661ce3bd072f5b164a0dd5f.

tiagofrepereira2012/bob.ip.base,tiagofrepereira2012/bob.ip.base,tiagofrepereira2012/bob.ip.base