Remove spaces from Relative Altitude fact name

src/MissionManager/RallyPoint.FactMetaData.json

@@ -16,7 +16,7 @@
     "decimalPlaces":    7
 },
 {
-    "name":             "Relative Altitude",
+    "name":             "RelativeAltitude",
     "shortDescription": "Altitude of rally point position (home relative)",
     "type":             "double",
     "decimalPlaces":    2,

src/MissionManager/RallyPoint.cc

@@ -15,7 +15,7 @@
 
 const char* RallyPoint::_longitudeFactName =    "Longitude";
 const char* RallyPoint::_latitudeFactName =     "Latitude";
-const char* RallyPoint::_altitudeFactName =     "Relative Altitude";
+const char* RallyPoint::_altitudeFactName =     "RelativeAltitude";
 
 QMap<QString, FactMetaData*> RallyPoint::_metaDataMap;