* AndroidManifest.xml: Add `AddDVDActivity' as an activity.
* res/layout/add.xml: Layout for `AddDVDActivity'.
* res/layout/main.xml: Remove the nested `LinearLayout' and `EditText'
widgets.
* res/values/strings.xml: Change the `name_entry' hint text, add
captions for `wishlist_entry', `watched_entry' and `save_button'.
* src/ryuslash/org/dvdroid/AddDVDActivity.java: New activity.
* src/ryuslash/org/dvdroid/DVDDataSource.java (createDVD): Accept
WATCHED and WISHLIST parameters and send these to the database
instead of `0' and `1'.
* src/ryuslash/org/dvdroid/DVDroidActivity.java (addDVD): Call
`AddDVDActivity' to add a new DVD to the collection.
(onActivityResult): New override.
