Fix remaining issues with new packaging system (mostly Linux)

Thanks to Duncan Armundsen and Damian Zhaoying for the pointers
(merges slightly with alchemy)

indra/newview/linux_tools/handle_secondlifeprotocol.sh.in

@@ -11,7 +11,7 @@ if [ -z "$URL" ]; then
 fi
 
 RUN_PATH=`dirname "$0" || echo .`
-cd "${RUN_PATH}"
+cd "${RUN_PATH}/.."
 
 exec ./@VIEWER_BRANDING_ID@ -url \'"${URL}"\'