Refactored BoatinRace to observable list

- Changed starting Boats into ObservableList from array
- stopped checkPosition in Race abstract class from updating the table as everytime as it is checked by a listener
- Changed array methods .length to .size() and [i] to .get() to reflect the type change.
#refactor #story[9]

.idea/copyright/profiles_settings.xml

@@ -0,0 +1,3 @@
+<component name="CopyrightManager">
+  <settings default="" />
+</component>

.idea/modules.xml

@@ -2,6 +2,7 @@
 <project version="4">
   <component name="ProjectModuleManager">
     <modules>
+      <module fileurl="file://$PROJECT_DIR$/team-7.iml" filepath="$PROJECT_DIR$/team-7.iml" />
       <module fileurl="file://$PROJECT_DIR$/.idea/team-7.iml" filepath="$PROJECT_DIR$/.idea/team-7.iml" />
     </modules>
   </component>