tree f9973fa90d2163fd485eee323fc48ef383941008
parent 3c843162f812ea22972d82fe7a834fac3f3ae2d5
author Davide Pesavento <davidepesa@gmail.com> 1569536909 -0400
committer Davide Pesavento <davidepesa@gmail.com> 1569536909 -0400

ci: upgrade Travis config to Ubuntu 18.04

Also in this commit:

 * Drop clang 3.8 (no easy way to install it on 18.04)
 * Add clang 10 (trunk)
 * Drop Xcode 8.3
 * Upgrade Xcode 10.2 to 10.3
 * Add Xcode 11

Change-Id: I1014d6791b39f126abdf9cd30910e265f773819e