Patch of Alternative Language

- Create a generic class of Alternative Language display instead of Bahasa only (to support many alt. languages)
(Default : English)
- Modifying Search query and Page Model with language attrib.
(Note: currently search is only worked for English, as check box has not yet been implemented)
- Separating Alternative language from tabs

Next to do list (need suggestion):
- For showing alt. language selection, which one is more preferable, a dialog (such as language selection in preferences) or a full-screen one?
- For Search query, which one is more preferable, check box or radio button (with 'All' choice) ?

Te-hee~