Adding gandi to integration suite. Fixing bugs. (#57)

* Adding gandi to integration suite. Fixing bugs.
Fixes #35
Fixes #36

* small fixes

* gandi docs

integrationTest/providers.json

@@ -3,11 +3,18 @@
         "domain": "example.com"
     },
     "DNSIMPLE": {
+        //16/17: no ns records managable. Not even for subdomains.
         "knownFailures": "16,17",
         "domain": "$DNSIMPLE_DOMAIN",
         "token": "$DNSIMPLE_TOKEN",
         "baseurl": "https://api.sandbox.dnsimple.com"
     },
+    "GANDI":{
+        //5: gandi does not accept ttls less than 300
+        "knownFailures": "5",
+        "domain": "$GANDI_DOMAIN",
+        "apikey": "$GANDI_KEY"
+    },
     "GCLOUD": {
         "domain": "$GCLOUD_DOMAIN",
         "project_id": "$GCLOUD_PROJECT",