Nyall Dawson 697a25dd92 Revert "Revert "[travis] Use newer clang 3.7 for linux builds""
This reverts commit d902c56f4d03c70a4654a7132effdf5150a6e052.

Default precise clang versions are now also randomly failing, so
let's try using a newer clang version (3.8) again and see if this
fixes it.
2016-03-02 12:02:11 +11:00
..
2016-02-16 12:11:27 +11:00