Improved script to do all necessary actions for upgrade.

Now automatically takes care of path changes for the includes in bootstrap.scss and responsive.scss (From #258)

update-bootstrap.sh

@@ -13,9 +13,13 @@ cp -r $TMP/js/* $ROOT/javascripts
 cp -r $TMP/img/* $ROOT/images
 # Remove tests
 rm -r $ROOT/javascripts/tests
-rm -r $ROOT/stylesheets/tests
+rm -r $ROOT/stylesheets/bootstrap/tests
 
 # Patch the asset-url in _variables.scss
 patch -f vendor/assets/stylesheets/bootstrap/_variables.scss < asseturl.patch
 
+# Patch paths in bootstrap.scss and responsive.scss
+sed -i .bak 's_@import \"_@import \"bootstrap/_g' $ROOT/stylesheets/bootstrap/{bootstrap,responsive}.scss
+rm $ROOT/stylesheets/bootstrap/*.bak
+
 rm -rf $TMP