travis: grab pgp key from www.edwardthomson.com Getting the key from the MIT keyserver is surprisingly unreliable. Try getting it from my website instead...
diff --git a/.travis.yml b/.travis.yml
index 1314345..569a6a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,7 +27,7 @@ addons:
apt:
sources:
- sourceline: 'deb http://libgit2deps.edwardthomson.com trusty libgit2deps'
- key_url: 'https://pgp.mit.edu/pks/lookup?op=get&search=0x5656187599131CD5'
+ key_url: 'https://www.edwardthomson.com/keys/ethomson@libgit2.org'
packages:
cmake
curl