* res/values/strings.xml: Add strings for `main_context_menu_edit' and
`main_context_menu_delete'.
* src/ryuslash/org/dvdroid/AddDVDActivity.java (saveDVD): Renamed from
`createDVD'. When ID is greater than 0 update, otherwise create.
(onCreate): Get ID from the `Intent' that was used to start this
activity. If ID is greater than 0, show known information in the
inputs.
* src/ryuslash/org/dvdroid/DVDDataSource.java:
(createValues):
(updateDVD):
(getById): New functions.
(createDVD): Use `createValues' to get the values for the database.
(deleteDVD): Add overloaded function that takes a `long', make the
original function use this to delete a `DVD'.
* src/ryuslash/org/dvdroid/DVDroidActivity.java: Implement
`ActionMode.Callback'.
(onActivityResult): If REQUESTCODE is `2' reset the intent
information so as not to confuse it during its next invocation.
Finish action mode.
(onActionItemClicked):
(onCreateActionMode):
(onDestroyActionMode):
(onListItemClick):
(onPrepareActionMode):
(reloadList):
(showEditDVD): New functions.
(onCreate): Instantiate the ADD_DVD `Intent'.
