Merge pull request 'added tonnes, fixed ye-olde kilogramme spelling' (#25) from lift-tonnes into master

Reviewed-on: #25

fitnessCog/activities/lift.json

@@ -8,8 +8,8 @@
                 "kgs",
                 "kilogram",
                 "kilograms",
-                "kilogramm",
+                "kilogramme",
-                "kilogramms",
+                "kilogrammes",
                 "kg.",
                 "kgs."
             ]
@@ -25,5 +25,14 @@
                 "pounds"
             ]
         },
+        "tonne": {
+            "factor": 1000,
+            "aliaases": [
+                "t",
+                "t.",
+                "tonne",
+                "tonnes"
+            ]
+        }
     }
 }