Upgrade to Vault 0.7.3.

Closes gh-119.

.travis.yml

@@ -27,7 +27,8 @@ env:
     - VAULT_VER=0.6.3
     - VAULT_VER=0.6.4
     - VAULT_VER=0.6.5
-    - VAULT_VER=0.7.0
+    - VAULT_VER=0.7.2
+    - VAULT_VER=0.7.3
 
 before_install:
   - sed -i.bak -e 's|https://nexus.codehaus.org/snapshots/|https://oss.sonatype.org/content/repositories/codehaus-snapshots/|g' ~/.m2/settings.xml

src/test/bash/install_vault.sh

@@ -6,7 +6,7 @@
 ###########################################################################
 
 
-VAULT_VER="${VAULT_VER:-0.7.0}"
+VAULT_VER="${VAULT_VER:-0.7.3}"
 UNAME=$(uname -s |  tr '[:upper:]' '[:lower:]')
 VAULT_ZIP="vault_${VAULT_VER}_${UNAME}_amd64.zip"
 IGNORE_CERTS="${IGNORE_CERTS:-no}"