added handling of onclicks for each social site.

also handled removal of sites.

also removed locationlib. There are too many issues with skyhook. Since this project does not use skyhook I will handle location internally.

had to make a small modification to Add Social Site preference. For some reason the key value changed. works now.

TravelPost/res/xml/travelpostmain.xml

@@ -9,7 +9,7 @@
     		android:key="socialsites">
         		<Preference
         			android:title="@string/add_social_site"
-        			android:key="add_social_site" />
+        			android:key="@string/add_social_site" />
         </PreferenceCategory>
                 
         <PreferenceCategory