Convert possible attributes keys to lower (close #108)

Author: tomasbedrich

pycaching/cache.py

@@ -32,8 +32,8 @@ class Cache(object):
     # generated by util.get_possible_attributes()
     # TODO: smarter way of keeping attributes up to date
     _possible_attributes = {
-        "AbandonedBuilding": "Abandoned Structure",
-        "UV": "UV Light Required",
+        "abandonedbuilding": "Abandoned Structure",
+        "uv": "UV Light Required",
         "available": "Available at all times",
         "bicycles": "Bicycles",
         "boat": "Boat",
@@ -92,7 +92,7 @@ class Cache(object):
         "teamwork": "Teamwork Required",
         "thorn": "Thorns",
         "ticks": "Ticks",
-        "touristOK": "Tourist Friendly",
+        "touristok": "Tourist Friendly",
         "treeclimbing": "Tree Climbing",
         "wading": "May require wading",
         "water": "Drinking water nearby",